Washakie Basin Wamsutter Arch SUBSURFACE STRATIGRAPHIC CROSS SECTION of CRETACEOUS and LOWER TERTIARY ROCKS in the SOUTHWESTERN

DIGITAL DATA SERIES DDS–69–D CHAPTER 14, PLATE 1–2 U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY Wamsutter arch Washakie Basin East 23 24 Amoco Production Company Frewen Deep Unit 1 22 26 C SE sec. 13, T. 19 N., R. 95 W. KB 6,937 Amoco Production Company 25 Tierney Unit 2 NW NE sec. 15, T. 19 N., R. 94 W. KB 6,691 4.0 mi 7.0 mi Amoco Production Company 1 Tipton Unit II SE NW sec. 14, T. 19 N., R. 96 W. KB 6,973 composite log Amoco Production Company Amoco-Champlin 278 E-3 NE SW sec. 13, T. 18 N., R. 93 W. KB 6,874 Amoco Production Company Amoco-Champlin 278 E-1 SE SE sec. 13, T. 18 N., R. 93 W. KB 6,936 Amoco Production Company Echo Springs Deep 1 NW SW sec. 21, T. 18 N., R. 93 W. KB 6,783 8.5 mi 500 27 <ul style="display: flex;"><li style="flex:1">GR </li><li style="flex:1">Res. </li></ul>3.0 mi Amoco Production Company Creston Nose 1 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000 10500 11000 11500 12000 12500 13000 13500 14000 14500 15000 15500 16000 16500 17000 17500 18000 18500 19000 GR 3.2 mi Wasatch and Green River Formations undivided NE SW sec. 9, T. 18 N., R. 92 W. KB 7,001 6.0 mi 1000 Res. 500 Res. GR ?21 ? ??1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000 10500 11000 11500 12000 12500 13000 13500 14000 14500 15000 15500 16000 16500 17000 17500 18000 6.7 mi ?500 <ul style="display: flex;"><li style="flex:1">Res. </li><li style="flex:1">GR </li></ul>Union Pacific Resources Sidewinder 1 H NW NW sec. 2, T. 19 N., R. 97 W. KB 6,911 Overland ?SP 28 Member Res. (Honey and Hettinger, 2004) 19 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000 10500 11000 11500 12000 12500 13000 13500 14000 14500 15000 15500 16000 16500 17000 20 Cherokee coal zone (Hettinger and Kirschbaum, 1991) GR basal sandstone part (Honey and Hettinger, 2004) Res. 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 5.0 mi 1500 Mountain Fuel Champlin Petroleum Company 8N Higgins 13-27 NW SW sec. 27, T. 18 N., R. 98 W. KB 6,908 Hollar Springs 1 SW NE sec. 28, T. 18 N., R. 91 W. KB 7,157 Texaco Inc. Table Rock Unit 44 NE SE sec. 18, T. 19 N., R. 97 W. KB 6,842 ? Fort Union Formation GR 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9.0 mi 107 111° °<ul style="display: flex;"><li style="flex:1">108 </li><li style="flex:1">110° </li></ul>109 ° °T40 N1000 Teton Res. 500 GR Res. Res. 500 1000 1500 2000 China Butte 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 Wasatch and Green River Formations undivided ? Member 1500 T35 NFremont (Honey and Hettinger, 2004) 43° Natrona 1000 ?SP ?Sublette 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000 10500 11000 11500 T30 N?Hoback Basin 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 12.0 mi Amstrat log shows coal, below 1400-1500 ft Red Rim Member Lincoln (Honey and Hettinger, 2004) T25 N T25 NGreat Divide Basin 42° GR Res. Fort Union Formation Rawlins Carbon uplift ?17 T20 N T20 NSweetwater 1Wamsutter 11 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000 10500 11000 11500 12000 12500 13000 13500 14000 14500 15000 15500 3 13 <ul style="display: flex;"><li style="flex:1">20 </li><li style="flex:1">12 </li><li style="flex:1">21 </li></ul><ul style="display: flex;"><li style="flex:1">7</li><li style="flex:1">2</li></ul>23 <ul style="display: flex;"><li style="flex:1">24 </li><li style="flex:1">22 </li></ul>56 25 26 4 14 28 <ul style="display: flex;"><li style="flex:1">27 </li><li style="flex:1">19 </li></ul>Uinta 15 8 18 Overland Member Lance Formation 10 9 17 (Honey and Hettinger, 2004) 16 Duncan Energy UPRC 1-29 T15 N T15 NWashakie Basin C SW sec. 29, T. 17 N., R. 100 W. KB 7,168 18 lower member of 16 WY Lance Formation ?T85W <ul style="display: flex;"><li style="flex:1">T90W </li><li style="flex:1">T115W </li><li style="flex:1">T95W </li></ul><ul style="display: flex;"><li style="flex:1">T110W </li><li style="flex:1">T105W </li><li style="flex:1">T100W </li></ul>41° (Honey and Hettinger, 2004) 3.0 mi 4.0 mi Cherokee Champlin Petroleum Company Brady Unit 37 N SE SW sec. 4, T. 17 N., R. 100 W. KB 6,910 China Butte ?Champlin Petroleum 36 N Brady 4 C-2 SE SW sec. 2, T. 16 N., T. 101 W. KB 7,120 Daggett Member Summit (Honey and Hettinger, 2004) Sand Wash Basin ??Jackson UT Lithologic and stratigraphic interpretations for unlogged part of well projected from Chandler & Simpson 1 Wallway B-1 sec. 32, T. 17 N., R. 100 W. Duchesne Uintah Fox Hills Sandstone T5SP Routt ?? Red Rim Moffat N?log change Member Lance Formation (Honey and Hettinger, 2004) Outcrop of Baxter Shale and equivalent strata GR ??Grand 7000 Southwestern Wyoming Province Lithologic and stratigraphic interpretations for unlogged part of well projected from Champlin Pet. 32-D Unit sec. 12, T. 16 N., R. 101 W. lower member of Lance Formation (Honey and Hettinger, 2004) 40° Lithologic and stratigraphic interpretations for unlogged part of well projected from <ul style="display: flex;"><li style="flex:1">0</li><li style="flex:1">10 </li><li style="flex:1">20 </li><li style="flex:1">30 </li><li style="flex:1">40Miles </li></ul>Rio Blanco CO ?St. Michael Expl. ?7500 8000 8500 9000 9500 10000 10500 1-2 Fed. sec. 2, T. 17 N., R. 100 W. T5S?Garfield Eagle ??Cretaceous-Tertiary Dad Sandstone Member unconformity Lewis Shale Res. GR Index map showing the limits of the Southwestern Wyoming Province, major structural features, and location of cross section. <ul style="display: flex;"><li style="flex:1">Res. </li><li style="flex:1">GR </li></ul><ul style="display: flex;"><li style="flex:1">GR </li><li style="flex:1">Res. </li></ul>Dad Sandstone Member 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000 10500 11000 11500 10.0 mi 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000 10500 11000 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000 10500 11000 Lewis Shale EXPLANATION scale change 9500 Open-hole completion Almond Formation Almond Formation Datum Datum 9000 Pine Ridge Sandstone Pine Ridge Sandstone TD 9,060 10000 10500 11000 11500 Canyon Creek Member Log type Ericson Sandstone Predominantly lacustrine, marginal lacustrine, and flood-plain deposits of the Green River and Bridger Formations. West of Rock Springs uplift 9500 10000 10500 11000 11500 12000 GR Res. Rusty zone 15 14,500 Gas show Mesaverde Group Allen Ridge Formation Allen Ridge Formation Predominantly lacustrine, marginal lacustrine, and flood-plain deposits of the Wasatch and Green River Formations. East of Rock Springs uplift Mesaverde Group Drill-stem test interval(s) Perforated interval(s) Trail Member Amoco Production 15,000 Producing interval Gas show Amoco-Champlin 395-B C NW sec. 35, T. 18 N., R. 102 W. KB 7,041 Depth scale (in feet) Sandstone, siltstone, and shale of the Wasatch Formation. West of Rock Springs uplift 11000 Rock Springs Formation 8500 Black Butte Tongue Coalbeds. Long bar indicates coalbeds identified from scale change combination gamma ray/density, or gamma ray/sonic logs. Short bar indicates coalbeds identified from resistivity logs. TD 11,452 Rock Springs Formation Continental, sandstone, siltstone, shale, and coal of the Fort Union Formation Coulson Tongue Haystack Mountains Formation 9000 9500 10000 10500 11000 11500 12000 12500 13000 13500 14000 14500 12000 Black Butte Tongue GR Plugged and abandoned Gas well Res. Predominantly fluvial sandstone TD 12,262 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 Coastal plain and alluvial plain, sandstone, siltstone, shale, and coal of Lance Formation 10000 Plugged and abandoned, gas show TD 10,000 ?Coastal plain and alluvial plain, sandstone, siltstone, shale, and coal upper shaly member GR Oil well Res. Blair Formatiom ?12500 ?Oil and gas well Marginal marine or coastal sandstone Estuarine and fluvial sandstone lower sandy member 13000 13500 14000 14500 15000 15500 16000 16500 17000 Kelly bushing, elevation in feet Total depth, in feet KB TD scale change 12000 12500 13000 13500 14000 14500 15000 15500 GR SP Gamma ray Steele Shale Spontaneous potential Resistivity Marine sandstone and siltstone Marine carbonates, marls, and calcareous shales Offshore marine shale Res. Unconformity, queried (?) where uncertain, dashed where inferred ??Steele Shale Locally correlatable horizon or marker bed Formation and (or) lithologic contact, queried (?) where uncertain, dashed where inferred ?Baxter Shale Coalbed correlations Baxter Shale Regional high gamma shale marker bed Open-hole (?) completion Feet 1,000 ??? 500 0Niobrara Formation ?Frontier Formation <ul style="display: flex;"><li style="flex:1">0</li><li style="flex:1">1</li><li style="flex:1">2</li><li style="flex:1">3</li><li style="flex:1">4</li><li style="flex:1">5 Miles </li></ul>Mowry Shale 6000 TD 6,800 ?TD 15,740 ? ?15000 TD 11,975 ?TD 12,518 ? ?TD 12,006 Frontier Formation Thermopolis Shale TD 17,060 ?Morrison Formation top from completion card TD 16,220 ?17500 Morrison Formation top from completion card ?? ? Mowry Shale TD 16,529 TD 17,683 ?Muddy Sandstone Cloverly Formation <ul style="display: flex;"><li style="flex:1">?</li><li style="flex:1">?</li></ul>? Morrison Formation (Jurassic) Morrison Formation top from completion card Thermopolis Shale TD 19,287 Morrison Formation top from completion card 18500 TD 18,523 ???SUBSURFACE STRATIGRAPHIC CROSS SECTION OF CRETACEOUS AND LOWER TERTIARY ROCKS IN THE SOUTHWESTERN WYOMING PROVINCE By Lower Cretaceous Thomas M. Finn and Ronald C. Johnson Chapter 14 2005

Washakie Basin Wamsutter Arch SUBSURFACE STRATIGRAPHIC CROSS SECTION of CRETACEOUS and LOWER TERTIARY ROCKS in the SOUTHWESTERN

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