Understanding Growth-Faulted, Intraslope Subbasins by Applying
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Reevaluating Evidence for the Pre-Lllinoian Entrenchment of Northeastern Iowa River Valleys
Journal of the Iowa Academy of Science: JIAS Volume 95 Number Article 3 1988 Reevaluating Evidence for the Pre-lllinoian Entrenchment of Northeastern Iowa River Valleys Curtis M. Hudak University of Iowa Let us know how access to this document benefits ouy Copyright © Copyright 1989 by the Iowa Academy of Science, Inc. Follow this and additional works at: https://scholarworks.uni.edu/jias Part of the Anthropology Commons, Life Sciences Commons, Physical Sciences and Mathematics Commons, and the Science and Mathematics Education Commons Recommended Citation Hudak, Curtis M. (1988) "Reevaluating Evidence for the Pre-lllinoian Entrenchment of Northeastern Iowa River Valleys," Journal of the Iowa Academy of Science: JIAS, 95(4), 109-113. Available at: https://scholarworks.uni.edu/jias/vol95/iss4/3 This Research is brought to you for free and open access by the Iowa Academy of Science at UNI ScholarWorks. It has been accepted for inclusion in Journal of the Iowa Academy of Science: JIAS by an authorized editor of UNI ScholarWorks. For more information, please contact [email protected]. ]our. Iowa Acad. Sci. 95(4): 109-113, 1988 Reevaluating Evidence for the Pre-lllinoian Entrenchment of Northeastern Iowa River Valleys 1 CURTIS M. HUDAK2 Department of Geology, University of Iowa, Iowa City, Iowa 52242 Previous workers have proposed a pre-Illinoian age for the deepest bedrock entrenchment of northeastern Iowa valleys. Lines of evidence used ro support a pre-Illinoian age of entrenchment are: ( 1) deep bedrock-entrenchment interpreted ro take "long" periods of time, (2) "valleys" filled with "red-weathered drift", which was interpreted as "old", (3) differences in cross-valley profiles supposedly related to glacial advances, (4) thick beds of gravel could only be deposited by outwash streams, and (5) glacially buried (drift-filled) bedrock valleys exist outside of the Paleozoic Plateau ro the west and south. -
Chapter 1 -- the Place of Faults in Petroleum Traps
Sorkhabi, R.,and Y. Tsuji, 2005, The place of faults in petroleum traps, in R. Sorkhabi and Y. Tsuji, eds., Faults, fluid flow, and petroleum traps: AAPG Memoir 85, 1 p. 1 – 31. The Place of Faults in Petroleum Traps Rasoul Sorkhabi1 Technology Research Center, Japan National Oil Corporation, Chiba, Japan Yoshihiro Tsuji2 Technology Research Center, Japan National Oil Corporation, Chiba, Japan ‘‘The incompleteness of available data in most geological studies traps some geologists.’’ Orlo E. Childs in Place of tectonic concepts in geological thinking (AAPG Memoir 2, 1963, p. 1) ‘‘Although the precise role of faults has never been systematically defined, much has been written that touches on the subject. One thing is certain: we need not try to avoid them.’’ Frederick G. Clapp in The role of geologic structure in the accu mulation of petroleum (Structure of typical American oil fields II, 1929, p. 686) ABSTRACT ver since Frederick Clapp included fault structures as significant petroleum traps in his landmark paper in 1910, the myriad function of faults in petroleum E migration and accumulation in sedimentary basins has drawn increasing atten- tion. Fault analyses in petroleum traps have grown along two distinct and successive lines of thought: (1) fault closures and (2) fault-rock seals. Through most of the last century, geometric closure of fault traps and reservoir seal juxtaposition by faults were the focus of research and industrial application. These research and applications were made as structural geology developed quantitative methods for geometric and kine- matic analyses of sedimentary basins, and plate tectonics offered a unified tool to correlate faults and basins on the basis of the nature of plate boundaries to produce stress. -
Status and Ecology of Mexican Spotted Owls in the Upper Gila Mountains Recovery Unit, Arizona and New Mexico
Status and Ecology of Mexican Spotted Owls in the Upper Gila Mountains Recovery Unit, Arizona and New Mexico Joseph L. Ganey James P. Ward, Jr. David W. Willey United States Forest Rocky Mountain General Technical Report Department Service Research Station RMRS-GTR-256WWW of Agriculture May 2011 Ganey, Joseph L.; Ward, James P. Jr.; Willey, David W. 2011. Status and ecology of Mexican spotted owls in the Upper Gila Mountains recovery unit, Arizona and New Mexico. Gen. Tech. Rep. RMRS-GTR-256WWW. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 94 p. Abstract This report summarizes current knowledge on the status and ecology of the Mexican spot- ted owl within the Upper Gila Mountains Recovery Unit (UGM RU). It was written at the request of U.S. Forest Service personnel involved in the Four Forests Restoration Initia- tive (4FRI), a collaborative, landscape-scale restoration effort covering approximately 2.4 million ac (1 million ha) across all or part of four National Forests (Apache-Sitgreaves, Coconino, Kaibab, and Tonto National Forests) located within the UGM RU. The UGM RU supports >50% of the known population of Mexican spotted owls, and the central location of the UGM RU within the overall range of the owl appears to facilitate gene flow throughout that range. Consequently, the UGM population is viewed as important to stability within the overall range of the owl, and management that impacts owls within the UGM RU could affect owl populations beyond that RU. Keywords: abundance, demography, habitat selection, diet composition, movements Authors Joseph L. -
Historical Geomorphology of the Verde River
Historical Geomorphology of the Verde River by Philip A. Pearthree Arizona Geological Survey Open-File Report 96-13 June, 1996 Arizona Geological Survey 416 W. Congress, Suite #100, Tucson, Arizona 85701 Research conducted in cooperation with CH2MHILL as part of the basic data collection for assessment of river navigability in Arizona at the time of Statehood (1912 J. Funding was provided by the Arizona State Land Department This report is preliminary and has not been edited or reviewed for conformity with Arizona Geological Survey standards Introduction The Verde River drainage is a major river system that heads in Big Chino Valley in north central Arizona, flows generally southeast through the rugged terrain of central Arizona, and empties into the Salt River east of the Phoenix metropolitan area. It is unusual in Arizona because much the main channel of the Verde River is perennial for much its length. Data summarized in this report were gathered to aid in the assessment of the navigability of the Verde River in February, 1912, when Arizona became a State. These investigations were conducted in cooperation with CH2MHill and were funded by the Arizona State Land Department. The purposes of this report are to (1) outline the geologic and geomorphic framework of the Verde River, (2) to describe the physical character of the channel of the Verde River, and (3) to evaluate how channel morphology and position have changed in the past century. Physiography, Geology, and General Geomorphology of the River The Verde River heads in and flows through the rugged highlands and valleys of central Arizona (Figure 1). -
Evolution of Extensional Basins and Basin and Range Topography West of Death Valley, California K.V
TECTONICS, VOL. 8, NO. 3, PAGES453-467, JUNE 1989 EVOLUTION OF EXTENSIONAL BASINS AND BASIN AND RANGE TOPOGRAPHY WEST OF DEATH VALLEY, CALIFORNIA K.V. Hodges,L.W. McKenna,J. Stock •, J. Knapp, L. Page,K. Sternlof, D. Silverberg,G. Wrist2, and J. D. Walker 3 Department of Earth, Atmospheric,and Planetary Sciences,Massachusetts Institute of Technology, Cambridge Abstract. Neogeneextension in the Death Valley system remained active during development of region, SE California, has produced a variety of PanamintValley and, thus, during developmentof sedimentarybasins. Diachronousmovements on an modernBasin and Rangetopography as well. These array of strike-slip and normal fault systemshave results indicate that large-scale extension in the resultedin the uplift andpreservation of olderbasins Death Valley region,accommodated by movementon in modernranges. One of the bestexposed of these low- to moderate-angle normal fault systemsand is the Nova basin on the western flank of the high-angle strike-slipfault systems,is a continuing Panamint Mountains. The Nova basin includes over process. Basin and Range topography in the 2000 m of sedimentaryand volcanicrocks deposited PanamintValley- Death Valley areawas generatedat during denudation of the Panamint Mountains least in part by displacements on low-angle metamorphiccore complex in late Miocene(?)- early detachmentsrather than high-angle normal faults. Pliocenetime. The principalgrowth structure for the basinwas the Emigrant detachment,which initiated andmoved at a low angle. Modern PanamintValley, INTRODUCTION west of the range, developedas a consequenceof Late Pliocene- Recent,kinematically linked move- The fact that topographyin the Basin and Range ment on the right-slip, high-angleHunter Mountain Province of the western United States is controlled fault zone and the low-angle Panamint Valley by normal faulting has been recognizedfor over a detachment. -
Mechanical Stratigraphy Controls Normal Fault Growth and Dimensions, Outer
1 Mechanical Stratigraphy Controls Normal Fault Growth and Dimensions, Outer 2 Kwanza Basin, Offshore Angola 3 4 David Redpath1*, Christopher A.-L Jackson1, Rebecca E. Bell1 5 Basins Research Group (BRG), Department of Earth Science & Engineering, Imperial 6 College, Prince Consort Road, London, SW7 2BP, UK 7 *Corresponding author: David Redpath ([email protected]) 8 This paper is a non-peer reviewed preprint submitted to EarthArXiv. This preprint has been 9 submitted to AGU Tectonics for consideration for publication. 10 11 12 Key Points: 13 Mechanical stratigraphy and fault interaction control the extent to which faults adhere 14 to displacement-length scaling relationships. 15 Fault growth and displacement-length relationships must be considered in context of 16 local controls to be adequately described. 17 Detailed kinematic analysis on faults developing within the same overall tectono- 18 stratigraphic setting can shed light on the kinematics of blind fault growth. 19 20 21 22 Abstract 23 Fault growth and dimensions are controlled by mechanical stratigraphy on seismic scales. Here 24 we present a detailed analysis of largely blind faults and their kinematics Offshore, Angola; 25 where, salt bodies and mass-transport complexes (MTC) act as mechanically restricting 26 elements to an array of extensional faults. Our study presents mechanically restricted faults 27 whose data fall within the general scatter present in global displacement-length (D-L) scaling 28 datasets, and yet have starkly different fault growth models to those expected using geometric 29 data alone. We show how using displacement-length data to determine fault growth can mask 30 the not insignificant mechanical controls on growth histories in the absence of detailed 31 kinematic analysis. -
Data for Quaternary Faults, Liquefaction Features, and Possible Tectonic Features in the Central and Eastern United States, East of the Rocky Mountain Front
U.S. Department of the Interior U.S. Geological Survey Data for Quaternary faults, liquefaction features, and possible tectonic features in the Central and Eastern United States, east of the Rocky Mountain front By Anthony J. Crone and Russell L. Wheeler Open-File Report 00-260 This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards nor with the North American Stratigraphic Code. Any use of trade names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government. 2000 Contents Abstract........................................................................................................................................1 Introduction..................................................................................................................................2 Strategy for Quaternary fault map and database .......................................................................10 Synopsis of Quaternary faulting and liquefaction features in the Central and Eastern United States..........................................................................................................................................14 Overview of Quaternary faults and liquefaction features.......................................................14 Discussion...............................................................................................................................15 Summary.................................................................................................................................18 -
Analyzing Rivers with Google Earth
Name____________________________________Per.______ Analyzing Rivers with Google Earth River systems exist all over the planet. You are going to examine several rivers and landforms created by rivers during this activity using Google Earth. While your iPad can view each location, you will need a laptop to use the ruler function. A B Figure 1: Meandering river terms. Image from: http://www.sierrapotomac.org/W_Needham/MeanderingRivers.htm Part I: Meandering Rivers: Figure 1 shows several terms used to describe meandering rivers. We are going to focus on wavelength, amplitude, and sinuosity. Sinuosity is the ratio of river length (distance traveled if you floated down the river) divided by straight length line (bird’s flight distance, i.e. from point A to B). The greater the number, the more tortuous (strongly meandering) the path the river takes. 1. Fly to Yakeshi, China. Just north of the city is a beautiful series of scroll bars (former point bars that have been abandoned) formed by the meandering river moving across the landscape. 1a. Describe the features you see. What “age” river is this (young, mature, old)? How are the meanders moving over time? Is the river becoming straighter or more curved? 1b. Find an area where the current river channel and clear meanders are easy to see (i.e. 49o18’30”N, 120o35’45”E). Measure the wavelength, amplitude and sinuosity of the river in this area. To measure straight line paths for wavelength, amplitude, and bird’s flight distance, go to Tools Ruler Line. Use kilometers. Click and drag your cursor across the area of interest. -
Relationship Between Growth Faults, Subsidence, and Land Loss: an Example from Cameron Parish, Southwestern Louisiana, USA
See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/340069701 Relationship between Growth Faults, Subsidence, and Land Loss: An Example from Cameron Parish, Southwestern Louisiana, USA Article in Journal of Coastal Research · March 2020 DOI: 10.2112/JCOASTRES-D-19-00108.1 CITATION READS 1 257 1 author: Raphael Gottardi University of Louisiana at Lafayette 41 PUBLICATIONS 136 CITATIONS SEE PROFILE Some of the authors of this publication are also working on these related projects: Basin Analysis View project All content following this page was uploaded by Raphael Gottardi on 23 March 2020. The user has requested enhancement of the downloaded file. Journal of Coastal Research 00 0 000–000 Coconut Creek, Florida Month 0000 Relationship between Growth Faults, Subsidence, and Land Loss: An Example from Cameron Parish, Southwestern Louisiana, USA Matthew O’Leary and Raphael Gottardi* School of Geosciences University of Louisiana at Lafayette Lafayette, LA 70504, U.S.A. ABSTRACT O’Leary, M. and Gottardi, R., 0000. Relationship between growth faults, subsidence, and land loss: An example from Cameron Parish, Southwestern Louisiana, USA. Journal of Coastal Research, 00(0), 000–000. Coconut Creek (Florida), ISSN 0749-0208. This study investigates the relationship between faulting, subsidence, and land loss in coastal Louisiana. A methodology that integrates three-dimensional (3D) seismic data, well logs, high-resolution topographic mapping (LIDAR), and historical aerial photography is successfully developed to identify fault-related geomorphic changes in southwestern Louisiana’s Chenier Plain. Analysis of a 3D seismic survey and well logs reveals the presence of 10 normal faults that form an east-west graben in the middle of the study area. -
Integrating 3-D Seismic Data with Shallow High Resolution Seismic Data
University of New Orleans ScholarWorks@UNO University of New Orleans Theses and Dissertations Dissertations and Theses Spring 5-19-2017 Evidence of fault movement during the Holocene in Southern Louisiana: integrating 3-D seismic data with shallow high resolution seismic data Joseph P. Frank University of New Orleans, [email protected] Follow this and additional works at: https://scholarworks.uno.edu/td Part of the Geology Commons Recommended Citation Frank, Joseph P., "Evidence of fault movement during the Holocene in Southern Louisiana: integrating 3-D seismic data with shallow high resolution seismic data" (2017). University of New Orleans Theses and Dissertations. 2321. https://scholarworks.uno.edu/td/2321 This Thesis is protected by copyright and/or related rights. It has been brought to you by ScholarWorks@UNO with permission from the rights-holder(s). You are free to use this Thesis in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights- holder(s) directly, unless additional rights are indicated by a Creative Commons license in the record and/or on the work itself. This Thesis has been accepted for inclusion in University of New Orleans Theses and Dissertations by an authorized administrator of ScholarWorks@UNO. For more information, please contact [email protected]. Evidence of fault movement during the Holocene in Southern Louisiana: integrating 3-D seismic data with shallow high resolution seismic data A Thesis Submitted to the Graduate Faculty of the University of New Orleans in partial fulfillment of the requirements for the degree of Master of Science in Earth and Environmental Sciences Coastal Geology by Joseph Frank B.S. -
Abstract Cenozoic Tectonism Can Be Seen in a Variety of Different Ways In
Abstract Cenozoic tectonism can be seen in a variety of different ways in the Coastal Plain of North Carolina. Using high resolution Light Detecting and Ranging digital elevation models (LiDAR), the geology of the coast can be analyzed to look for evidence supporting recent tectonism and disequilibrium. The rivers in the Coastal Plain, as well as other features, provide much evidence to support this theory. Looking at the complicated geomorphology of the rivers, particularly the Cape Fear River, gives insight to potential fault locations along the rivers. Most of the streams exhibit stream capture, another sign of disequilibrium, and the amount of stream capture was quantified on the Cape Fear River. There is a southwest migration trend in the major rivers of the Coastal Plain. While the Cape Fear Arch can explain this trend in the Cape Fear River, it does not explain the southwest migration in other rivers in the north as well. Knickpoints were found in all of the rivers in the Coastal Plain. While most of them can be associated with sea level fall or changes in underlying lithologies, there are many that are caused by tectonics. Wave-cut escarpments were once deposited horizontally in various places due to rises and falls in sea level. Elevation profiles along these scarps show a higher elevation in the north than in the south, which could be explained by uplift. This uplift would also account for the southwest migration trend in the rivers. Introduction As every geologist knows, everything on Earth is constantly changing. Mountains are being formed as well as destroyed, plates are moving, new crust is being formed as old crust is subducted and recycled, and rivers are moving. -
Evolution of Extensional Systems
Faculty of Science Masaryk University Department of Geological Sciences Evolution of Extensional Systems Literature Thesis in Requirement for Masters Author: B.Sc. Cameron Sheya Supervisors: Assoc. Prof. RNDr. Rostislav Melichar, Dr., Prof Michal Nemˇcok, DrSc. Brno, Czech Republic 2010 Contents Table of Contentsi Preface ii 1 Classification of rift systems: Basics1 1.1 Continental Rifts................................1 1.1.1 Narrow Rifts..............................2 1.1.2 Wide rifts................................2 1.2 Pull-apart basins................................5 1.3 Back-arc Basins................................. 10 1.4 Cratonic Sags.................................. 11 2 Rift system linkages and geometries 16 2.1 Fault geometries and linkages......................... 16 2.2 Fault linkages.................................. 18 2.3 Sub-basin interactions and the role of extension geometry in the process.. 22 3 Pull-apart basin development and geometries 28 3.1 Basic basin evolution and resulting geometries................ 28 Bibliography 38 i Preface The purpose of this literature thesis is to create a concise report on the extension and associated basin types and their subsequent history in the orogenic foreland setting. This thesis was written with the intent of first classifying the types of extensional basins and then describing their evolution. The understanding of the basin dynamics throughout their history will help in interpreta- tions of past and present day tectonic regimes. Final chapters discuss characteristics and dynamics of foreland basins including potential inversion of pre-existing extensional basins. ii Chapter 1 Classification of rift systems: Basics 1.1 Continental Rifts Continental rifts are areas where extension of the continental lithosphere leads to a subsid- ing basin.It is broken by several normal faults or several sets of normal faults, which can lead to either passive or active upwelling of the hot asthenospheric material underneath the area of the rift (Allen & Allen, 1990, 2005; Brun, 1999).