DOCSLIB.ORG

Sedimentary Aspects of the New River Delta, Salton Sea, Imperial County, California

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Sedimentary Aspects of the New River Delta, Salton Sea, Imperial County, California 0 7)" .,.C NOTICE : This material may be protected by copyright MICHAEL F. STEPHEN `aw (Title 17 U .S . Code) . DONN S. GORSLINE Sedimentary Aspects of the New River Delta, Salton Sea, Imperial County, California ABSTRACT: Located at the southern end of the Sediment mineralogy reflects the composi- Salton Sea in Imperial County, California, the tion of its source material--Colorado Delta de- New River Delta has a subaqueous extent tritus. Organic carbon is characteristically high greater than 25 km2. The accumulating deltaic (5%, maximum) in fine marsh clays, mudflat, sediments are supplied by the New River at a and prodelta clays and low in delta front and rate of 500 x 106 kg suspended sediment distributary coarse silts and sand (0.58% annually. New River drains 6,500 km 2 over its minimum) . 150 km length . Climatic factors exert considerable control on Because of its unusually small size, the New deltaic configuration and the subaerial extent River Delta provides an excellent model for a of the New River Delta has been severely re- detailed analysis of deltaic facies distribution duced by rising water levels . The delta has ac- and relationships . Subaerial deposits compris- cumulated sediment at an average rate of ing distributary channel, levee, interdistribu- slightly over 1 cm/yr for the past 66 years . When tary subaerial flat and crevasse deposits are the the total volume of sediment in the delta, 0.024 most varied. Subaqueous deposits are largely km3, is compared with river discharge, it is prodelta clay and delta-front fine silt. apparent that most of the sediment is trapped Sediment size distribution is related to dis- by the delta . tributary patterns . Sand and coarse silt charac- Factors common to most modern deltaic mas- terize distributary channel and proximal delta ses such as abundant plant remains, high mica front environments . Lateral gradations from content, elongate sand bodies, highly organic sand to clay or sand to interbedded silt and clay prodeltaic deposits, and laminated sands over are common as one moves from distributary muds can be used in recognition of ancient del- channels to interdistributary areas. Vertically, tas. All of these features are manifest in the basal prodelta clays grade upward into silty fades of the New River Delta and indicate that delta front facies which either are overlain by similar balances between sediment input and interdistributary and marsh clays and silts, or local energy levels will produce similar by sands of distributary channels . sedimentary patterns regardless of scale . INTRODUCTION widths ranging from a few hundred meters to 2 The New River Delta, located at the southern km. The total area of influence is about 25 km2. end of the Salton Sea, Imperial County, Califor- Because the valley has been an important ag- nia (see Figure 1) is the product of the cata- ricultural area since the beginning of this cen- strophic flooding of the Salton Sink by the Col- tury, the water levels, rates of evaporation and orado River in 1905-1906 . The delta in 1972 had a water budget of the sea and its tributary streams subaerial length of approximately 3 km and have been recorded in detail. As a result, the history of the factors affecting delta develop- Stanton, 1930 ; Dibblee, 1954; Allison, 1964; ment are known for the entire period of deposi- Biehler et al ., 1964; Walker, 1967) . More recent tion. The delta provides a scale model of deltaic students of the area (see in Henyey and Bischoff, processes in an area unaffected by tides and 1973) have shown that this entire structural with low wave energy . The study was initiated province is intimately related to the movement in order to determine the sedimentologic simi- of the North American and North Pacific crustal larity or difference between this small feature plates in middle to late Tertiary time . and the equivalent lobes produced by single dep- Although much remains to be done in precise ositional cycles in large deltas of major rivers . If research, the sediments of the upper Gulf of the small delta is similar to the large ones, then California adjacent to the Colorado Delta record the results of contemporary investigations can changing rates and sources of sediments that be extrapolated to identify ancient deltas with must be a product of recent shifts in the Col- confidence that the differences in scale of indi- orado River's course (Byrne and Emery, 1960; vidual deltas will not affect the resulting charac- Van Andel, 1964 ; Thompson, 1968) . Work is in teristic assemblages of facies. progress by Bischoff and Henyey on the chemi- cal evidence from cores in the northern Gulf that will aid in documenting the late changes . Arnal (1961) has shown that the record of changing salinity following the formation of the Salton Sea can be read in the characteristics of the microfaunal assemblages in the modern sed- iments . Blake (1854) reiterated Indian accounts of great floods which forced tribes to flee the valley floor and move up into the surrounding moun- tains. A few radiocarbon dates for calcareous lake deposits (R . H . Merriam, personal com- munication) indicate that a lake filled the basin as recently as 700 years ago . However, no men- tion of any lake was made by explorers (Kino, 1701, as cited in Byrne and Emery, 1960) . The agricultural value of the southern Impe- rial Valley, referred to as the Salton Sink before 1905, was recognized as early as the 1850's by Blake (1854) . But not until 1900 was work begun to irrigate the basin using water diverted from Figure 1. Location map of the New River Delta and the Colorado River (see in Brown, 1923 ; Sykes, drainage area (after Dibblee, 1954) . Alamo River 1937). Inasmuch as the Colorado River had sent (AR) and Whitewater River (W) also drain into the its flood waters over its banks and into the Sal- Salton Sea . ton Sink for many years along the New River and Alamo River channels (Chase, 1919), it was felt diversion could be accomplished easily, History of the Salton Sea especially because the natural gradient into the Salton Basin is greater than toward the Gulf of The geologic record shows that the Colorado California. An artificial gap was excavated into River has alternately deposited its load into the the levees of the main river channel to lead water northern and southern portions of the great by canals to the Basin . Brown (1923, p. 11) notes: structural trough of which the Salton Sink and "Several unusual floods that occurred in the Gulf of California are part (Buwalda and the spring of 1905 greatly widened the arti- NEW RIVER DELTA, SALTON SEA 269 ficial breach in the river bank made to admit into the sea and 3600 x 10 6 m3 a year of water is extra water into the canals . These floods imported by canals for irrigation (Anon ., 1970) . also carried out the dams built to seal off this Average subsurface flow into the Salton Sea is inlet. .During the high water season of this estimated to be 60 x 10 6 m3 a year. Surface of the year, much water flowed through the canal lake in 1970 was about 70 m below sea level, and and over its banks and wasted into the basin maximum depth was about 15 m . at the bottom of the Salton Sink, where it The land surrounding the lake exhibits the formed the beginning of the present Salton typical physiographic features associated with Sea. Strenuous efforts were made to dam arid regions . Huge alluvial fans spread out from up the intakes, but flood followed flood, the surrounding mountains, sand dunes occur and one after another the structures were in the northern areas and along the western carried away . margin of the lake. Badlands carved in soft clays The Salton Sea grew day by day . as the and sandstones of the Mecca and Indio hills are whole flow of the Colorado River was pour- present along the borders of the basin. Arroyos ing through an opening now hundreds of dissect the surrounding desert flats . Vegetation feet wide. The water on its way . .ate great is sparse. canyons in the soft silt of the valley . These Temperature, precipitation, and evaporation canyons are followed by the present chan- values for the Salton Sea region are characteris- nels of the New and Alamo Rivers ." tic of mid-latitude deserts . Of these, the most The breach was finally closed in November, significant to our study are the rainfall and 1906, and the history of the New River Delta evaporation rates . starts from that date . Local records of water flow Rainfall ranges between a maximum monthly and suspended sediment discharge have been value of 17 mm precipitation in December to a maintained virtually from the date of initiation. trace recorded in June . Average annual rainfall over a 73-year period is 81 mm. Physiography and Climate Evaporation at a rate of about 1780 mm per Situated in a huge northwest-trending top- year (Blaney, 1955) is recorded with a maximum ographic and structural depression, and at Indio of 422 mm for the month of July . flanked by faults in the San Andreas zone, the New River Location, Length and Discharge Salton Sink's surface elevation is approximately 85 m below sea level. The depression is bounded The Imperial Canal, which branches from the on the north and west by the Peninsular Ranges Colorado River, and the Paredones River are which include the San Jacinto, Santa Rosa, tributaries of the New River at its initiation along Vallecito, and Laguna Mountains . To the east of a natural divide on the Colorado River Delta .
Load more

Recommended publications
  • Preliminary Catalog of the Sedimentary Basins of the United States
    Preliminary Catalog of the Sedimentary Basins of the United States By James L. Coleman, Jr., and Steven M. Cahan Open-File Report 2012–1111 U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior KEN SALAZAR, Secretary U.S. Geological Survey Marcia K. McNutt, Director U.S. Geological Survey, Reston, Virginia: 2012 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 http://www.usgs.gov or call 1–888–ASK–USGS. For an overview of USGS information products, including maps, imagery, and publications, visit http://www.usgs.gov/pubprod To order this and other USGS information products, visit http://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: Coleman, J.L., Jr., and Cahan, S.M., 2012, Preliminary catalog of the sedimentary basins of the United States: U.S. Geological Survey Open-File Report 2012–1111, 27 p. (plus 4 figures and 1 table available as separate files) Available online at http://pubs.usgs.gov/of/2012/1111/. iii Contents Abstract ...........................................................................................................................................................1
    [Show full text]
  • Rivers, Canals, and Distributaries in Punjab, Pakistan
    Socio#Hydrology of Channel Flows in Complex River Basins: Rivers, Canals, and Distributaries in Punjab, Pakistan The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Citation Wescoat, James L., Jr. et al. "Socio-Hydrology of Channel Flows in Complex River Basins: Rivers, Canals, and Distributaries in Punjab, Pakistan." Water Resources Research 54, 1 (January 2018): 464-479 © 2018 The Authors As Published http://dx.doi.org/10.1002/2017wr021486 Publisher American Geophysical Union (AGU) Version Final published version Citable link https://hdl.handle.net/1721.1/122058 Terms of Use Creative Commons Attribution-NonCommercial-NoDerivs License Detailed Terms http://creativecommons.org/licenses/by-nc-nd/4.0/ PUBLICATIONS Water Resources Research RESEARCH ARTICLE Socio-Hydrology of Channel Flows in Complex River Basins: 10.1002/2017WR021486 Rivers, Canals, and Distributaries in Punjab, Pakistan Special Section: James L. Wescoat Jr.1 , Afreen Siddiqi2 , and Abubakr Muhammad3 Socio-hydrology: Spatial and Temporal Dynamics of 1School of Architecture and Planning, Massachusetts Institute of Technology, Cambridge, MA, USA, 2Institute of Data, Coupled Human-Water Systems, and Society, Massachusetts Institute of Technology, Cambridge, MA, USA, 3Lahore University of Management Systems Sciences, Lahore, Pakistan Key Points: This paper presents a socio-hydrologic analysis of channel flows in Punjab province of the Coupling historical geographic and Abstract statistical analysis makes an Indus River basin in Pakistan. The Indus has undergone profound transformations, from large-scale canal irri- important contribution to the theory gation in the mid-nineteenth century to partition and development of the international river basin in the and methods of socio-hydrology mid-twentieth century, systems modeling in the late-twentieth century, and new technologies for discharge Comparing channel flow entitlements with deliveries sheds measurement and data analytics in the early twenty-first century.
    [Show full text]
  • Modeling Subsurface Flow in Sedimentary Basins by CRAIG M
    129 Geologische Rundschau 78/1 I 129-154 I Stuttgart 1989 Modeling subsurface flow in sedimentary basins By CRAIG M. BETHKE, Urbana*) With 16 figures Zusammenfassung raines qui se manifestent dans les bassins sedimentaires, et qui resultent du relief topographique, de la convection, de la Grundwasserbewegungen in sedimentaren Becken, die compaction des sediments, de la decharge due l'erosio? et von dem topographischen Relief, konvektionsbedingtem a de la combinaison de ces divers facteurs. Dans ces modeles, Auftrieb, Sedimentkompaktion, isostatischen Ausgleichsbe­ on peut prendre en con~ideration les effets d~s tr:'nsferts d,e wegungen in Folge von Erosion und v~n ~mbinati~n~n chaleur et de matieres dlssoutes lors de la migration du pe­ dieser Kriifte gesteuert werden, konnen mit Hilfe quanutattv trole et ceux de I'interaction chimique de I'eau avec les modellierender Techniken beschrieben werden. In diesen roches. Toutefois la precision des previsions que I'on peut en Modellen kann man die Auswirkungen des Transports von deduire est limitee par la difficulte d'estimer I'echelle regia­ Warme und gel osten Stoffen, Petroleum-Migration und die a nale les proprietes hydrologiques des sediments, de reconsti­ chemische Interaktion zwischen Wasser und dem grund­ tuer les conditions anciennes, et de connaitre de quelle wasserleitenden Gestein beriicksichtigen. maniere les processus physiques et chimiques interferent Die Genauigkeit der Modell-Voraussagen ist allerdings a I'echelle des temps geologiques. La modelisation des bassins begrenzt wegen der Schwierigkeit, hydrologische Ei­ progressera dans la mesure ou la recherche hydrogeologique genschaften von Sedimenten in einem regionalen Rahmen ser mieux integree acelles d'autres disciplines telles que la se­ vorauszusagen, dem Schatzen vergangener Bedingungen und dimentologie, la mecanique des roches et la geochimie.
    [Show full text]
  • Dayton Valley Development Guidelines Final Draft
    FINAL DRAFT Dayton Valley Development Guidelines Supplement to the Dayton Valley Area Drainage Master Plan prepared for August Lyon County | Storey County | 2019 Carson Water Subconservancy District i FINAL DRAFT Table of Contents 1 Introduction .......................................................................................................................................... 1 1.1 Background and Rationale ............................................................................................................ 3 1.1.1 More Frequent Flooding ....................................................................................................... 3 1.1.2 Larger Flood Peaks ................................................................................................................ 3 1.1.3 Scour and Erosion ................................................................................................................. 3 1.1.4 Flow Diversion ....................................................................................................................... 3 1.1.5 Flow Concentration ............................................................................................................... 3 1.1.6 Expanded Floodplains ........................................................................................................... 3 1.1.7 Reduced Surface Storage ...................................................................................................... 3 1.1.8 Decreased Ground Water Recharge ....................................................................................
    [Show full text]
  • The Geographic, Geological and Oceanographic Setting of the Indus River
    16 The Geographic, Geological and Oceanographic Setting of the Indus River Asif Inam1, Peter D. Clift2, Liviu Giosan3, Ali Rashid Tabrez1, Muhammad Tahir4, Muhammad Moazam Rabbani1 and Muhammad Danish1 1National Institute of Oceanography, ST. 47 Clifton Block 1, Karachi, Pakistan 2School of Geosciences, University of Aberdeen, Aberdeen AB24 3UE, UK 3Geology and Geophysics, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA 4Fugro Geodetic Limited, 28-B, KDA Scheme #1, Karachi 75350, Pakistan 16.1 INTRODUCTION glaciers (Tarar, 1982). The Indus, Jhelum and Chenab Rivers are the major sources of water for the Indus Basin The 3000 km long Indus is one of the world’s larger rivers Irrigation System (IBIS). that has exerted a long lasting fascination on scholars Seasonal and annual river fl ows both are highly variable since Alexander the Great’s expedition in the region in (Ahmad, 1993; Asianics, 2000). Annual peak fl ow occurs 325 BC. The discovery of an early advanced civilization between June and late September, during the southwest in the Indus Valley (Meadows and Meadows, 1999 and monsoon. The high fl ows of the summer monsoon are references therein) further increased this interest in the augmented by snowmelt in the north that also conveys a history of the river. Its source lies in Tibet, close to sacred large volume of sediment from the mountains. Mount Kailas and part of its upper course runs through The 970 000 km2 drainage basin of the Indus ranks the India, but its channel and drainage basin are mostly in twelfth largest in the world. Its 30 000 km2 delta ranks Pakiistan.
    [Show full text]
  • Use of Sedimentary Megasequences to Re-Create Pre-Flood Geography
    The Proceedings of the International Conference on Creationism Volume 8 Print Reference: Pages 351-372 Article 27 2018 Use of Sedimentary Megasequences to Re-create Pre-Flood Geography Timothy L. Clarey Institute for Creation Research Davis J. Werner Institute for Creation Research Follow this and additional works at: https://digitalcommons.cedarville.edu/icc_proceedings Part of the Geology Commons, and the Stratigraphy Commons DigitalCommons@Cedarville provides a publication platform for fully open access journals, which means that all articles are available on the Internet to all users immediately upon publication. However, the opinions and sentiments expressed by the authors of articles published in our journals do not necessarily indicate the endorsement or reflect the views of DigitalCommons@Cedarville, the Centennial Library, or Cedarville University and its employees. The authors are solely responsible for the content of their work. Please address questions to [email protected]. Browse the contents of this volume of The Proceedings of the International Conference on Creationism. Recommended Citation Clarey, T.L., and D.J. Werner. 2018. Use of sedimentary megasequences to re-create pre-Flood geography. In Proceedings of the Eighth International Conference on Creationism, ed. J.H. Whitmore, pp. 351–372. Pittsburgh, Pennsylvania: Creation Science Fellowship. Clarey, T.L., and D.J. Werner. 2018. Use of sedimentary megasequences to re-create pre-Flood geography. In Proceedings of the Eighth International Conference on Creationism, ed. J.H. Whitmore, pp. 351–372. Pittsburgh, Pennsylvania: Creation Science Fellowship. USE OF SEDIMENTARY MEGASEQUENCES TO RE-CREATE PRE-FLOOD GEOGRAPHY Timothy L. Clarey, Institute for Creation Research, 1806 Royal Lane, Dallas, TX 75229 USA, [email protected] Davis J.
    [Show full text]
  • Autogenic Cycles of Channelized Fluvial and Sheet Flow and Their
    RESEARCH Autogenic cycles of channelized fl uvial and sheet fl ow and their potential role in driving long-runout gravel pro- gradation in sedimentary basins Todd M. Engelder and Jon D. Pelletier* DEPARTMENT OF GEOSCIENCES, UNIVERSITY OF ARIZONA, 1040 E. FOURTH STREET, TUCSON, ARIZONA 85721, USA ABSTRACT The paleoslope estimation method uses a threshold-shear-stress criterion, together with fi eld-based measurements of median grain size and channel depth in alluvial gravel deposits, to calculate the threshold paleoslopes of alluvial sedimentary basins. Threshold paleoslopes are the minimum slopes that would have been necessary to transport sediment in those basins. In some applications of this method, inferred threshold paleoslopes are suffi ciently steeper than modern slopes that large-magnitude tectonic tilting must have occurred in order for sediments to have been transported to their present locations. In this paper, we argue that autogenic cycles of channelized fl uvial and sheet fl ow in alluvial sedimentary basins result in spatial and temporal variations in the threshold slope of gravel transport that can, under certain conditions, cause gravel to prograde out to distances much longer than previously thought possible based on paleoslope estima- tion theory (i.e., several hundred kilometers or more from a source region). We test this hypothesis using numerical models for two types of sedimentary basins: (1) an isolated sedimentary basin with a prescribed source of sediment from upstream, and (2) a basin dynamically coupled to a postorogenic mountain belt. In the models, threshold slopes for entrainment are varied stochastically through time with an amplitude equal to that inferred from an analysis of channel geometry data from modern rivers.
    [Show full text]
  • USGS Open-File Report 2010-1333 and CGS SR
    Prepared in cooperation with the California Geological Survey; University of Oregon; University of Colorado; University of California, San Diego; and Jet Propulsion Laboratory, California Institute of Technology. Triggered Surface Slips in Southern California Associated with the 2010 El Mayor-Cucapah, Baja California, Mexico, Earthquake SALTON SEA Open-File Report 2010-1333 Jointly published as California Geological Survey Special Report 221 U.S. Department of Interior U.S. Geological Survey COVER Landsat satellite image (LE70390372003084EDC00) showing location of surface slip triggered along faults in the greater Salton Trough area. Red bars show the generalized location of 2010 surface slip along faults in the central Salton Trough and many additional faults in the southwestern section of the Salton Trough. Surface slip in the central Salton Trough shown only where verified in the field; slip in the southwestern section of the Salton Trough shown where verified in the field or inferred from UAVSAR images. Triggered Surface Slips in Southern California Associated with the 2010 El Mayor-Cucapah, Baja California, Mexico, Earthquake By Michael J. Rymer, Jerome A. Treiman, Katherine J. Kendrick, James J. Lienkaemper, Ray J. Weldon, Roger Bilham, Meng Wei, Eric J. Fielding, Janis L. Hernandez, Brian P. E. Olson, Pamela J. Irvine, Nichole Knepprath, Robert R. Sickler, Xiaopeng Tong, and Martin E. Siem Prepared in cooperation with the California Geological Survey; University of Oregon; University of Colorado; University of California, San Diego; and Jet Propulsion Laboratory, California Institute of Technology. Open-File Report 2010–1333 Jointly published as California Geological Survey Special Report 221 U.S. Department of Interior U.S.
    [Show full text]
  • “Major World Deltas: a Perspective from Space
    “MAJOR WORLD DELTAS: A PERSPECTIVE FROM SPACE” James M. Coleman Oscar K. Huh Coastal Studies Institute Louisiana State University Baton Rouge, LA TABLE OF CONTENTS Page INTRODUCTION……………………………………………………………………4 Major River Systems and their Subsystem Components……………………..4 Drainage Basin………………………………………………………..7 Alluvial Valley………………………………………………………15 Receiving Basin……………………………………………………..15 Delta Plain…………………………………………………………...22 Deltaic Process-Form Variability: A Brief Summary……………………….29 The Drainage Basin and The Discharge Regime…………………....29 Nearshore Marine Energy Climate And Discharge Effectiveness…..29 River-Mouth Process-Form Variability……………………………..36 DELTA DESCRIPTIONS…………………………………………………………..37 Amu Darya River System………………………………………………...…45 Baram River System………………………………………………………...49 Burdekin River System……………………………………………………...53 Chao Phraya River System……………………………………….…………57 Colville River System………………………………………………….……62 Danube River System…………………………………………………….…66 Dneiper River System………………………………………………….……74 Ebro River System……………………………………………………..……77 Fly River System………………………………………………………...…..79 Ganges-Brahmaputra River System…………………………………………83 Girjalva River System…………………………………………………….…91 Krishna-Godavari River System…………………………………………… 94 Huang He River System………………………………………………..……99 Indus River System…………………………………………………………105 Irrawaddy River System……………………………………………………113 Klang River System……………………………………………………...…117 Lena River System……………………………………………………….…121 MacKenzie River System………………………………………………..…126 Magdelena River System……………………………………………..….…130
    [Show full text]
  • Sonny Bono Salton Sea National Wildlife Refuge Complex
    Appendix J Cultural Setting - Sonny Bono Salton Sea National Wildlife Refuge Complex Appendix J: Cultural Setting - Sonny Bono Salton Sea National Wildlife Refuge Complex The following sections describe the cultural setting in and around the two refuges that constitute the Sonny Bono Salton Sea National Wildlife Refuge Complex (NWRC) - Sonny Bono Salton Sea NWR and Coachella Valley NWR. The cultural resources associated with these Refuges may include archaeological and historic sites, buildings, structures, and/or objects. Both the Imperial Valley and the Coachella Valley contain rich archaeological records. Some portions of the Sonny Bono Salton Sea NWRC have previously been inventoried for cultural resources, while substantial additional areas have not yet been examined. Seventy-seven prehistoric and historic sites, features, or isolated finds have been documented on or within a 0.5- mile buffer of the Sonny Bono Salton Sea NWR and Coachella Valley NWR. Cultural History The outline of Colorado Desert culture history largely follows a summary by Jerry Schaefer (2006). It is founded on the pioneering work of Malcolm J. Rogers in many parts of the Colorado and Sonoran deserts (Rogers 1939, Rogers 1945, Rogers 1966). Since then, several overviews and syntheses have been prepared, with each succeeding effort drawing on the previous studies and adding new data and interpretations (Crabtree 1981, Schaefer 1994a, Schaefer and Laylander 2007, Wallace 1962, Warren 1984, Wilke 1976). The information presented here was compiled by ASM Affiliates in 2009 for the Service as part of Cultural Resources Review for the Sonny Bono Salton Sea NWRC. Four successive periods, each with distinctive cultural patterns, may be defined for the prehistoric Colorado Desert, extending back in time over a period of at least 12,000 years.
    [Show full text]
  • GEOPHYSICAL STUDY of the SALTON TROUGH of Soutllern CALIFORNIA
    GEOPHYSICAL STUDY OF THE SALTON TROUGH OF SOUTllERN CALIFORNIA Thesis by Shawn Biehler In Partial Fulfillment of the Requirements For the Degree of Doctor of Philosophy California Institute of Technology Pasadena. California 1964 (Su bm i t t ed Ma Y 7, l 964) PLEASE NOTE: Figures are not original copy. 11 These pages tend to "curl • Very small print on several. Filmed in the best possible way. UNIVERSITY MICROFILMS, INC. i i ACKNOWLEDGMENTS The author gratefully acknowledges Frank Press and Clarence R. Allen for their advice and suggestions through­ out this entire study. Robert L. Kovach kindly made avail­ able all of this Qravity and seismic data in the Colorado Delta region. G. P. Woo11ard supplied regional gravity maps of southern California and Arizona. Martin F. Kane made available his terrain correction program. c. w. Jenn­ ings released prel imlnary field maps of the San Bernardino ct11u Ni::eule::> quad1-angles. c. E. Co1-bato supplied information on the gravimeter calibration loop. The oil companies of California supplied helpful infor­ mation on thelr wells and released somA QAnphysical data. The Standard Oil Company of California supplied a grant-In- a l d for the s e i sm i c f i e l d work • I am i ndebt e d to Drs Luc i en La Coste of La Coste and Romberg for supplying the underwater gravimeter, and to Aerial Control, Inc. and Paclf ic Air Industries for the use of their Tellurometers. A.Ibrahim and L. Teng assisted with the seismic field program. am especially indebted to Elaine E.
    [Show full text]
  • Coachella Valley Water Management Plan 2010 Update
    COACHELLA VALLEY WATER MANAGEMENT PLAN 2010 UPDATE Final Report January 2012 Prepared for: Coachella Valley Water District Steve Robbins General Manager-Chief Engineer Patti Reyes Planning and Special Program Manager Prepared by: MWH 618 Michillinda Ave., Suite 200 Arcadia, CA 91007 Water Consult 535 North Garfield Avenue Loveland, CO 80537 Table of Contents Section Name Page Number Executive Summary ................................................................................................................ ES-1 ES-1 The Coachella Valley ...............................................................................................ES-1 ES-2 Water Management in the Coachella Valley ...........................................................ES-3 ES-3 Current Condition of Coachella Valley Groundwater Basin ...................................ES-4 ES-4 The 2002 Water Management Plan..........................................................................ES-5 ES-4.1 Goals and Objectives ......................................................................................ES-5 ES-4.2 Accomplishments Since 2002 .........................................................................ES-6 ES-5 2010 WMP Update ................................................................................................ES-13 ES-5.1 Population and Water Demand .....................................................................ES-13 ES-5.2 Future Water Supply Needs ..........................................................................ES-16 ES-5.3 What
    [Show full text]