DOCSLIB.ORG

Permian Sedimentary Rocks of the Black Mesa Basin Area H

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Permian Sedimentary Rocks of the Black Mesa Basin Area H New Mexico Geological Society Downloaded from: http://nmgs.nmt.edu/publications/guidebooks/9 Permian sedimentary rocks of the Black Mesa Basin area H. Wesley Peirce, 1958, pp. 82-87 in: Black Mesa Basin (Northeastern Arizona), Anderson, R. Y.; Harshbarger, J. W.; [eds.], New Mexico Geological Society 9th Annual Fall Field Conference Guidebook, 205 p. This is one of many related papers that were included in the 1958 NMGS Fall Field Conference Guidebook. Annual NMGS Fall Field Conference Guidebooks Every fall since 1950, the New Mexico Geological Society (NMGS) has held an annual Fall Field Conference that explores some region of New Mexico (or surrounding states). Always well attended, these conferences provide a guidebook to participants. Besides detailed road logs, the guidebooks contain many well written, edited, and peer-reviewed geoscience papers. These books have set the national standard for geologic guidebooks and are an essential geologic reference for anyone working in or around New Mexico. Free Downloads NMGS has decided to make peer-reviewed papers from our Fall Field Conference guidebooks available for free download. Non-members will have access to guidebook papers two years after publication. Members have access to all papers. This is in keeping with our mission of promoting interest, research, and cooperation regarding geology in New Mexico. However, guidebook sales represent a significant proportion of our operating budget. Therefore, only research papers are available for download. Road logs, mini-papers, maps, stratigraphic charts, and other selected content are available only in the printed guidebooks. Copyright Information Publications of the New Mexico Geological Society, printed and electronic, are protected by the copyright laws of the United States. No material from the NMGS website, or printed and electronic publications, may be reprinted or redistributed without NMGS permission. Contact us for permission to reprint portions of any of our publications. One printed copy of any materials from the NMGS website or our print and electronic publications may be made for individual use without our permission. Teachers and students may make unlimited copies for educational use. Any other use of these materials requires explicit permission. This page is intentionally left blank to maintain order of facing pages. 82 NEW MEXICO GEOLOGICAL SOCIETY 0" NINTH FIELD CONFERENCE PERMIAN SEDIMENTARY ROCKS OF THE BLACK MESA BASIN AREA by H. WESLEY PEIRCE Arizona Bureau of Mines University of Arizona GENERAL STATEMENT Figure No. 2 is an attempt to show the thickness dis- Information regarding Permian sedimentary rocks of tribution of the Supai formation in northeastern Arizona. the Black Mesa structural basin must be gathered from a In the area just south of the San Juan River all of the few drill holes and disconnected outcrops on the fringes of Cutler formation below the DeChelly sandstone has been the basin. From the center of the Black Mesa physio- considered Supai for all practical purposes. The figure graphic feature it is approximately 80, 72, 60, and 40 demonstrates the basining around the Holbrook area which miles south, west, north, and east respectively to the Mo- contrasts with the formational thinning onto the Defiance gollon Plateau, Grand Canyon, Monument Valley, and the and Mogollon Rim areas to the east and south respectively. Defiance Plateau where Permian sedimentary rocks crop The configuration of the zone of significant evaporite ac- out. As drill hole data are limited over most of the basin cumulation is not known to the north along the flank of area, projected trends through the basin are highly specu- the Defiance. Recent mapping in the Mogollon Rim to lative. the south has disclosed only minor beds of gypsum occurring PERMIAN BOUNDARIES near the top of the formation. Previous workers have emphasized the difficulty of The control point just southeast of Kaibito in the north- drawing a precise boundary between Pennsylvanian and central part of the area (fig. 2) is based on a log of a Permian sedimentary rocks in northern Arizona. That the test hole drilled by the Sinclair Oil Company in 1952. The Supai, lowermost of the Permian formations, crosses the log suggests that the interval between the top of the Rico Pennsylvanian-Permian boundary seems well established formation and the bottom of the DeChelly is only 580 feet by studies that have been made in parts of the Grand thick. This is the thinnest Supai (Organ Rock tongue of Canyon and Mogollon Plateau regions—Noble (1922), the Cutler fm.) in the area and creates the need for rep- Hughes 11950), Jackson (1951), Huddle and Dobrovolny resenting a northwest-southeast zone of thinned Supai that (1945), and Winters (1950). In western Grand Canyon trends toward the Black Mesa basin. and along portions of the Mogollon Rim the red sedimen- Evidently the paleogeographic framework that con- tary rocks of the Supai formation are interbedded with trolled the Supai formation was initiated during the Penn- marine limestones near the base in a manner that would sylvanian and continued into the Permian period. The seem to be analogous to the Rico "transition interval" de- floor of the deepening Pennsylvanian-Permian Supai basin scribed by Bailey (1955) in the Four Corners region. must have been sinking more rapidly than the previously In eastern Grand Canyon and at Jerome the Supai existing Defiance positive area and the area along the formation rests on the Mississippian Redwall limestone. present Mogollon Rim. Details of the configuration and extent of the latter type Cutler formation of contact are not known but undoubtedly it trends towards As indicated in the legend of figures 1-4, the Cutler the western margins of the Black Mesa basin. On the formation of the Monument Valley area is composed of Defiance Plateau as well as near St. Johns, Permian sedi- five members. Although Baker and Reeside (1929) be- mentary rocks are in depositional contact with granite and lieve that the Permian section in Monument Valley con- quartzite of probable Precambrian age (fig. 1). Permian trasts markedly with the Grand Canyon section, the writer sedimentary rocks are overlain by Triassic formations in suggests that except for the absence of the Kaibab forma- the Black Mesa basin but are truncated by upper Creta- tion and the insertion by them of the Hoskininni tongue ceous sandstones along parts of the Mogollon Rim to the at the top of the section, the stratigraphic sequences of the south. two disconnected provices have much in common (fig. 1 ). SOME ASPECTS OF PERMIAN STRATIGRAPHY The Cedar Mesa sandstone member of the Cutler formation Supai-Hermit formations passes laterally into red beds to the southeast, south, and The term "Supai" is currently used over all of northern probably southwest as this sandstone was not recognized Arizona except in the Four Corners area. As used it refers in the Sinclair test hole previously mentioned. The Organ to a multiple lithologic sequence dominated by reddish Rock and Halgaito red bed tongues thus coalesce to form clastics with varying modifications, but in large part sandy. a sedimentary sequence that cannot be readily differentiat- Although the formation contains some limestone, only the ed from the Supai formation of the Black Mesa basin area. prominent Ft. Apache limestone unit of the Mogollon Rim Baker and Reeside (1929) as well as Baker (1936) and area has been given a formal name. Evaporitic material Baker and Williams (1940) all picture the Cedar Mesa as well as evaporites seem to be concentrated in the and DeChelly sandstones as merging westward to form Holbrook to St. Johns region where the Supai formation the Coconino sandstone. McKee (1933) is not in agree- attains its greatest known thickness of approximately 2600 ment with this concept and the present writer is in agree- feet (figs. 1 and 2). ment with McKees views. It seems highly unlikely that The Hermit formation disconformably overlies the Supai the 57 feet of Coconino sandstone near Lees Ferry rep- formation in the Grand Canyon region and areas to the resents the 1300 feet of section from the top of the De- north. Evidently the Hermit merges laterally with the Supai Chelly sandstone to the bottom of the Cedar Mesa sand- southward towards Oak Creek Canyon as at this locality stone as shown in the Texas Company Hoskininni Mesa oil the Coconino sandstone, which overlies the Hermit in the test in western Monument Valley (fig. 1). Grand Canyon, is in gradational contact with sedimentary Coconino-DeChelly sandstones rocks of Supai lithology. The Hermit formation, as in the The Coconino sandstone of the Grand Canyon-Mogol- Grand Canyon area, is not known to extend into the Ion Plateau regions and the DeChelly sandstone of the Black Mesa basin. Defiance Plateau and Monument Valley areas everywhere NEW MEXICO GEOLOGICAL SOCIETY 0 NINTH FIELD CONFERENCE 83 EXPLANATION 7 PIO Mogollon Plateau Area Sections: 1-Argo Oil Co. St. No. 2 well 2-Franco-Ariz. Oil Co. Govt. No. 1 3-Gt. Basin Oil, Taylor-Fuller No. I Grand Canyon Area Sections: 4-Oak Creek Canyon •sdc 5-Bass Trail Pik 6-Little Colorado River 7-Badger Canyon Ps MESA Ps Monument Valley Section: 8-Texas Co. Hoskininni Mesa test BASIN Defiance Plateau Sections: 9-Canyon DeChelly area 10-Hunters Point 11-Pine Springs Pudc-Upper member DeChelly ss Pldc-Lower member DeChelly ss Pc Gr- Granite Qtz- Quartzite Stratigraphic symbols as shown in Ps previous figures. Evaporitic sandy sits ss Evaporite Vertical Scale 1"= 1,000 0 18 36 FIGURE 1. Typical Permian sections surrounding the Black Mesa basin with possible relationships. Scale - Miles overlie, so far as is known, red sedimentary rocks. The Unequivocal solutions to problems of this sort are Coconino has been studied over a wide area by McKee difficult to establish when stratigraphic relationships can- (1933).
Load more

Recommended publications
  • Ron Blakey, Publications (Does Not Include Abstracts)
    Ron Blakey, Publications (does not include abstracts) The publications listed below were mainly produced during my tenure as a member of the Geology Department at Northern Arizona University. Those after 2009 represent ongoing research as Professor Emeritus. (PDF) – A PDF is available for this paper. Send me an email and I'll attach to return email Blakey, R.C., 1973, Stratigraphy and origin of the Moenkopi Formation of southeastern Utah: Mountain Geologist, vol. 10, no. 1, p. 1 17. Blakey, R.C., 1974, Stratigraphic and depositional analysis of the Moenkopi Formation, Southeastern Utah: Utah Geological Survey Bulletin 104, 81 p. Blakey, R.C., 1977, Petroliferous lithosomes in the Moenkopi Formation, Southern Utah: Utah Geology, vol. 4, no. 2, p. 67 84. Blakey, R.C., 1979, Oil impregnated carbonate rocks of the Timpoweap Member Moenkopi Formation, Hurricane Cliffs area, Utah and Arizona: Utah Geology, vol. 6, no. 1, p. 45 54. Blakey, R.C., 1979, Stratigraphy of the Supai Group (Pennsylvanian Permian), Mogollon Rim, Arizona: in Carboniferous Stratigraphy of the Grand Canyon Country, northern Arizona and southern Nevada, Field Trip No. 13, Ninth International Congress of Carboniferous Stratigraphy and Geology, p. 89 109. Blakey, R.C., 1979, Lower Permian stratigraphy of the southern Colorado Plateau: in Four Corners Geological Society, Guidebook to the Permian of the Colorado Plateau, p. 115 129. (PDF) Blakey, R.C., 1980, Pennsylvanian and Early Permian paleogeography, southern Colorado Plateau and vicinity: in Paleozoic Paleogeography of west central United States, Rocky Mountain Section, Society of Economic Paleontologists and Mineralogists, p. 239 258. Blakey, R.C., Peterson, F., Caputo, M.V., Geesaman, R., and Voorhees, B., 1983, Paleogeography of Middle Jurassic continental, shoreline, and shallow marine sedimentation, southern Utah: Mesozoic PaleogeogÂraphy of west central United States, Rocky Mountain Section of Society of Economic Paleontologists and Mineralogists (Symposium), p.
    [Show full text]
  • Chapter 2 Paleozoic Stratigraphy of the Grand Canyon
    CHAPTER 2 PALEOZOIC STRATIGRAPHY OF THE GRAND CANYON PAIGE KERCHER INTRODUCTION The Paleozoic Era of the Phanerozoic Eon is defined as the time between 542 and 251 million years before the present (ICS 2010). The Paleozoic Era began with the evolution of most major animal phyla present today, sparked by the novel adaptation of skeletal hard parts. Organisms continued to diversify throughout the Paleozoic into increasingly adaptive and complex life forms, including the first vertebrates, terrestrial plants and animals, forests and seed plants, reptiles, and flying insects. Vast coal swamps covered much of mid- to low-latitude continental environments in the late Paleozoic as the supercontinent Pangaea began to amalgamate. The hardiest taxa survived the multiple global glaciations and mass extinctions that have come to define major time boundaries of this era. Paleozoic North America existed primarily at mid to low latitudes and experienced multiple major orogenies and continental collisions. For much of the Paleozoic, North America’s southwestern margin ran through Nevada and Arizona – California did not yet exist (Appendix B). The flat-lying Paleozoic rocks of the Grand Canyon, though incomplete, form a record of a continental margin repeatedly inundated and vacated by shallow seas (Appendix A). IMPORTANT STRATIGRAPHIC PRINCIPLES AND CONCEPTS • Principle of Original Horizontality – In most cases, depositional processes produce flat-lying sedimentary layers. Notable exceptions include blanketing ash sheets, and cross-stratification developed on sloped surfaces. • Principle of Superposition – In an undisturbed sequence, older strata lie below younger strata; a package of sedimentary layers youngs upward. • Principle of Lateral Continuity – A layer of sediment extends laterally in all directions until it naturally pinches out or abuts the walls of its confining basin.
    [Show full text]
  • Michael Kenney Paleozoic Stratigraphy of the Grand Canyon
    Michael Kenney Paleozoic Stratigraphy of the Grand Canyon The Paleozoic Era spans about 250 Myrs of Earth History from 541 Ma to 254 Ma (Figure 1). Within Grand Canyon National Park, there is a fragmented record of this time, which has undergone little to no deformation. These still relatively flat-lying, stratified layers, have been the focus of over 100 years of geologic studies. Much of what we know today began with the work of famed naturalist and geologist, Edwin Mckee (Beus and Middleton, 2003). His work, in addition to those before and after, have led to a greater understanding of sedimentation processes, fossil preservation, the evolution of life, and the drastic changes to Earth’s climate during the Paleozoic. This paper seeks to summarize, generally, the Paleozoic strata, the environments in which they were deposited, and the sources from which the sediments were derived. Tapeats Sandstone (~525 Ma – 515 Ma) The Tapeats Sandstone is a buff colored, quartz-rich sandstone and conglomerate, deposited unconformably on the Grand Canyon Supergroup and Vishnu metamorphic basement (Middleton and Elliott, 2003). Thickness varies from ~100 m to ~350 m depending on the paleotopography of the basement rocks upon which the sandstone was deposited. The base of the unit contains the highest abundance of conglomerates. Cobbles and pebbles sourced from the underlying basement rocks are common in the basal unit. Grain size and bed thickness thins upwards (Middleton and Elliott, 2003). Common sedimentary structures include planar and trough cross-bedding, which both decrease in thickness up-sequence. Fossils are rare but within the upper part of the sequence, body fossils date to the early Cambrian (Middleton and Elliott, 2003).
    [Show full text]
  • (Central Arizona) GEOSPHERE
    Research Paper GEOSPHERE Incision history of the Verde Valley region and implications for uplift of the Colorado Plateau (central Arizona) 1 2 2 GEOSPHERE; v. 14, no. 4 Richard F. Ott , Kelin X. Whipple , and Matthijs van Soest 1Department of Earth Sciences, ETH Zurich, Sonneggstrasse 5, 8092 Zurich, Switzerland 2School of Earth and Space Exploration, Arizona State University, 781 S. Terrace Road, Tempe, Arizona 85287, USA https://doi.org/10.1130/GES01640.1 12 figures; 3 tables; 1 supplemental file ABSTRACT et al., 2008; Moucha et al., 2009; Huntington et al., 2010; Liu and Gurnis, 2010; Flowers and Farley, 2012; Crow et al., 2014; Darling and Whipple, 2015; Karl- CORRESPONDENCE: richard .ott1900@ gmail .com The record of Tertiary landscape evolution preserved in Arizona’s transition strom et al., 2017). As part of this debate, the incision of the Mogollon Rim, zone presents an independent opportunity to constrain the timing of Colo­ the southwestern edge of the Colorado Plateau (Fig. 1), is not well constrained CITATION: Ott, R.F., Whipple, K.X., and van Soest, rado Plateau uplift and incision. We study this record of landscape evolution in the literature, and disparate ideas about its formation and incision history M., Incision history of the Verde Valley region and implications for uplift of the Colorado Plateau by mapping Tertiary sediments, volcanic deposits, and the erosional uncon­ have been proposed (Peirce et al., 1979; Lindberg, 1986; Elston and Young, ( central Ari zona): Geosphere, v. 14, no. 4, p. 1690– formity at their base, 40Ar/39Ar dating of basaltic lava flows in key locations, and 1991; Holm, 2001).
    [Show full text]
  • AN ABSTRACT of the THESIS of J. Andrew Alexander for the Degree
    AN ABSTRACT OF THE THESIS OF J. Andrew Alexander for the degree of Doctor of Philosophy in Botany and Plant Pathology presented on November 7, 2007 . Title: A Taxonomic Revision of Astragalus mokiacensis and Allied Taxa within the Astragalus lentiginosus Complex of Section Diphysi . Abstract approved: _______________________________________________ Aaron I. Liston North America, with over 400 species of Astragalus (Fabaceae), is one of three major centers of diversity, all of which comprise the majority of the nearly 1750 species of Astragalus worldwide. One of the most diverse species, Astragalus lentiginosus of Section Diphysi , is a polymorphic complex of over 40 varieties, ranging from the West Coast to Texas and the Rocky Mountains. Palantia was a sectional name within the genus Tium used by Rydberg for taxa formerly reduced by Jones to varieties of A. lentiginosus. They share cylindrical pods that, unlike the rest of A. lentiginosus , do not become bladdery inflated upon maturity. The Palantia, in a modern interpretation, consists of A. mokiacensis and A. bryantii plus the other scarcely inflated varieties of A. lentiginosus , primarily A. lentiginosus var. maricopae , A. lentiginosus var. palans , A. lentiginosus var. ursinus , and A. lentiginosus var. wilsonii . Every major revision has delimited these taxa differently. A principal coordinates analysis of morphological data from herbarium specimens was used to determine the affinities between type specimens and extant populations of these taxa and to determine the degree of morphological similarity among these taxa. For the genetic analysis, highly polymorphic cpDNA microsatellites were selected due to their applicability to both genetic and phylogenetic questions across a wide range of taxonomic levels.
    [Show full text]
  • Detrital Zircon Provenance Evidence
    INTERNATIONAL GEOLOGY REVIEW 2020, VOL. 62, NO. 9, 1224–1244 https://doi.org/10.1080/00206814.2020.1756930 ARTICLE Detrital zircon provenance evidence for an early Permian longitudinal river flowing into the Midland Basin of west Texas Lowell Waite a,b, Majie Fanc, Dylan Collinsd, George Gehrelse and Robert J. Sternb aPioneer Natural Resources, Irving, Texas, USA; bDepartment of Geosciences, University of Texas at Dallas, Richardson, Texas, USA; cDepartment of Earth and Environmental Sciences, The University of Texas at Arlington, Arlington, Texas, USA; dStronghold Resource Partners, Dallas, Texas, USA; eDepartment of Geosciences, The University of Arizona, Tucson, Arizona, USA ABSTRACT ARTICLE HISTORY Collision of Gondwana and Laurentia in the late Palaeozoic created new topography, drainages, Received 17 June 2019 and foreland basin systems that controlled sediment dispersal patterns on southern Laurentia. We Accepted 7 April 2020 utilize sedimentological and detrital zircon data from early Permian (Cisuralian/Leonardian) sub- KEYWORDS marine-fan deposits in the Midland Basin of west Texas to reconstruct sediment dispersal pathways Permian; Permian Basin; and palaeogeography. New sedimentological data and wire-line log correlation suggest a portion Spraberry Formation; detrital of the early Permian deposits have a southern entry point. A total of 3259 detrital zircon U-Pb and zircon; provenance; foreland 357 εHf data from 12 samples show prominent groups of zircon grains derived from the basins Appalachian (500–270 Ma) and Grenville (1250–950 Ma) provinces in eastern Laurentia and the peri-Gondwana terranes (800–500 Ma) incorporated in the Alleghanian-Ouachita-Marathon oro- gen. Other common zircon groups of Mesoproterozoic-Archaean age are also present in the samples.
    [Show full text]
  • Grand Canyon
    U.S. Department of the Interior Geologic Investigations Series I–2688 14 Version 1.0 4 U.S. Geological Survey 167.5 1 BIG SPRINGS CORRELATION OF MAP UNITS LIST OF MAP UNITS 4 Pt Ph Pamphlet accompanies map .5 Ph SURFICIAL DEPOSITS Pk SURFICIAL DEPOSITS SUPAI MONOCLINE Pk Qr Holocene Qr Colorado River gravel deposits (Holocene) Qsb FAULT CRAZY JUG Pt Qtg Qa Qt Ql Pk Pt Ph MONOCLINE MONOCLINE 18 QUATERNARY Geologic Map of the Pleistocene Qtg Terrace gravel deposits (Holocene and Pleistocene) Pc Pk Pe 103.5 14 Qa Alluvial deposits (Holocene and Pleistocene) Pt Pc VOLCANIC ROCKS 45.5 SINYALA Qti Qi TAPEATS FAULT 7 Qhp Qsp Qt Travertine deposits (Holocene and Pleistocene) Grand Canyon ၧ DE MOTTE FAULT Pc Qtp M u Pt Pleistocene QUATERNARY Pc Qp Pe Qtb Qhb Qsb Ql Landslide deposits (Holocene and Pleistocene) Qsb 1 Qhp Ph 7 BIG SPRINGS FAULT ′ × ′ 2 VOLCANIC DEPOSITS Dtb Pk PALEOZOIC SEDIMENTARY ROCKS 30 60 Quadrangle, Mr Pc 61 Quaternary basalts (Pleistocene) Unconformity Qsp 49 Pk 6 MUAV FAULT Qhb Pt Lower Tuckup Canyon Basalt (Pleistocene) ၣm TRIASSIC 12 Triassic Qsb Ph Pk Mr Qti Intrusive dikes Coconino and Mohave Counties, Pe 4.5 7 Unconformity 2 3 Pc Qtp Pyroclastic deposits Mr 0.5 1.5 Mၧu EAST KAIBAB MONOCLINE Pk 24.5 Ph 1 222 Qtb Basalt flow Northwestern Arizona FISHTAIL FAULT 1.5 Pt Unconformity Dtb Pc Basalt of Hancock Knolls (Pleistocene) Pe Pe Mၧu Mr Pc Pk Pk Pk NOBLE Pt Qhp Qhb 1 Mၧu Pyroclastic deposits Qhp 5 Pe Pt FAULT Pc Ms 12 Pc 12 10.5 Lower Qhb Basalt flows 1 9 1 0.5 PERMIAN By George H.
    [Show full text]
  • MINERAL POTENTIAL REPORT for the Lands Now Excluded from Grand Staircase-Escalante National Monument
    United States Department ofthe Interior Bureau of Land Management MINERAL POTENTIAL REPORT for the Lands now Excluded from Grand Staircase-Escalante National Monument Garfield and Kane Counties, Utah Prepared by: Technical Approval: flirf/tl (Signature) Michael Vanden Berg (Print name) (Print name) Energy and Mineral Program Manager - Utah Geological Survey (Title) (Title) April 18, 2018 /f-P/2ft. 't 2o/ 8 (Date) (Date) M~zr;rL {Signature) 11 (Si~ ~.u.. "'- ~b ~ t:, "4 5~ A.J ~txM:t ;e;,E~ 't"'-. (Print name) (Print name) J.-"' ,·s h;c.-+ (V\ £uA.o...~ fk()~""....:r ~~/,~ L{ ( {Title) . Zo'{_ 2o l~0 +(~it71 ~ . I (Date) (Date) This preliminary repon makes information available to the public that may not conform to UGS technical, editorial. or policy standards; this should be considered by an individual or group planning to take action based on the contents ofthis report. Although this product represents the work of professional scientists, the Utah Department of Natural Resources, Utah Geological Survey, makes no warranty, expressed or implied, regarding it!I suitability for a panicular use. The Utah Department ofNatural Resources, Utah Geological Survey, shall not be liable under any circumstances for any direct, indirect, special, incidental, or consequential damages with respect to claims by users ofthis product. TABLE OF CONTENTS SUMMARY AND CONCLUSIONS ........................................................................................................... 4 Oil, Gas, and Coal Bed Methane ...........................................................................................................
    [Show full text]
  • Challenges to God & Faith Ecbs 2014
    CHALLENGES TO GOD & FAITH ECBS 2014 MANʼS CHALLENGES TO GOD Challenge of Biology – Evolution Challenge of Geology – Deep Time Challenge of Archaeology – Egyptian Chronology GODʼS CHALLENGES TO MAN Challenge of Godʼs Power & Specified Design Challenge of The Empty Tomb Challenge of Godʼs Witnesses ECBS 2014 – TS 1 ECBS 2014 – TS 2 INTRODUCTION: CHALLENGES TO GOD & FAITH Why We Should Be Concerned – A Case Study Rob Hyndman was a dynamic Christadelphian preacher. He has written a number of helpful books for the community both on the fundamentals and on other subjects. Several years ago he decided to explore a number of troubling issues. He felt these could be resolved in a way that would satisfy both current scientific thought and still be true to Godʼs Word. Here, in his own words, is what happened: AN END OF FAITH – Rob Hyndman Published on 29 July 2013 This week I resigned from the Christadelphian faith after nearly 30 years as a member, and having attended Christadelphian activities almost every week of my life. I resigned because I no longer believe. I donʼt believe the Bible is inspired by God. I am not even sure there is a God. Perhaps there is, but he is not who I once thought he was. I was an active and enthusiastic believer from the time of my baptism at age 16, right up until a few months ago when my world of faith fell apart. I should have seen it coming, but I didnʼt. I had embarked on what I thought was a quest to re- examine my beliefs, and encourage reform within the Christadelphian community.
    [Show full text]
  • Paleontological Resources Report Coconino National Forest, Lake Mary Road and Highway 179, Sedona
    United States Department of Agriculture Paleontological Forest Service Resources Southwestern Region Existing Conditions December 2013 Specialist Report Forest Plan Revision Draft Environmental Impact Statement (DEIS) Submitted by: __/s/ __Polly A. Haessig_______________________ Physical Scientist/NEPA Specialist Mogollon Rim Ranger District, Coconino National Forest Date: September 1, 2011 Revision Date: December 23, 2013 1 The U.S. Department of Agriculture (USDA) prohibits discrimination against its customers, employees, and applicants for employment on the bases of race, color, national origin, age, disability, sex, gender identity, religion, reprisal, and where applicable, political beliefs, marital status, familial or parental status, sexual orientation, or all or part of an individual's income is derived from any public assistance program, or protected genetic information in employment or in any program or activity conducted or funded by the Department. (Not all prohibited bases will apply to all programs and/or employment activities.) i Preface The information in this specialist report reflects analysis that was completed prior to and in conjunction with the completion of the Draft Environmental Impact Statement (DEIS) for the revision of the 1987 Coconino National Forest Land Management Plan (the Plan). The primary purpose of specialist reports associated with the DEIS is to provide detailed information to assist in the preparation of the DEIS. As the DEIS was prepared, review-driven edits to the broader DEIS resulted in modifications to some of the information contained in some of the specialist reports. As a result, some reports no longer contain information and analysis that was updated through an interdisciplinary review process and is included in the DEIS in its entirety.
    [Show full text]
  • Investigation of the Geology and Hydrology of the Coconino Plateau of Northern Arizona: a Project of the Arizona Rural Watershed Initiative
    Prepared in cooperation with the ARIZONA DEPARTMENT OF WATER RESOURCES Investigation of the Geology and Hydrology of the Coconino Plateau of Northern Arizona: A Project of the Arizona Rural Watershed Initiative ����� ���� The water resources of the Coconino Each study has as its objectives: (1) the Plateau in northern Arizona are under collection, compilation, and evaluation increasing demand as a result of develop- of all existing geologic, hydrologic, and ment. The population of this arid region �������� ��������� related data pertaining to the study area continues to grow, and the number of ������� and the creation of a database that is �� visitors to the many national and state ����� ���� �� readily accessible to the public and (2) the �� �� �� � parks and monuments in the region has �� � development of an understanding of the increased annually. The sustainability, � hydrogeologic framework, which is the protection, and maintenance of springs relation between hydrologic and geologic and seeps and associated riparian ������� properties, that can be used for water- habitat on the Coconino Plateau are r e s o u r c e s management purposes major issues that have broad public and ������� and that will support governmental support. the development of Regional stakeholders agree that an conceptual and inter- improved understanding of the regional � pretive models that � � hydrogeologic system is needed to � can be used to ������ � address the concerns of water supply � e v a l u a t e t h e � � � and ground-water sustainability. The ��� � ��� effects of climate � � base of information required to ade- � � and water use on � � � � quately describe the hydrogeology of � ����� ������ � regional water � � �������� ���� � ��� ����� � the Coconino Plateau currently does � � resources.
    [Show full text]
  • USGS General Information Product
    Geologic Field Photograph Map of the Grand Canyon Region, 1967–2010 General Information Product 189 U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior DAVID BERNHARDT, Secretary U.S. Geological Survey James F. Reilly II, Director U.S. Geological Survey, Reston, Virginia: 2019 For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment—visit https://www.usgs.gov or call 1–888–ASK–USGS. For an overview of USGS information products, including maps, imagery, and publications, visit https://store.usgs.gov. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this information product, for the most part, is in the public domain, it also may contain copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner. Suggested citation: Billingsley, G.H., Goodwin, G., Nagorsen, S.E., Erdman, M.E., and Sherba, J.T., 2019, Geologic field photograph map of the Grand Canyon region, 1967–2010: U.S. Geological Survey General Information Product 189, 11 p., https://doi.org/10.3133/gip189. ISSN 2332-354X (online) Cover. Image EF69 of the photograph collection showing the view from the Tonto Trail (foreground) toward Indian Gardens (greenery), Bright Angel Fault, and Bright Angel Trail, which leads up to the south rim at Grand Canyon Village. Fault offset is down to the east (left) about 200 feet at the rim.
    [Show full text]