 | Enomoto, Catherine B., Coleman, James L., Swezey, Christopher S., Niemeyer, Patrick W., Dulong, Frank T. (2015) Geochemical and mineralogical sampling of the Devonian shales in the Broadtop synclinorium, Appalachian basin, in Virginia, West Virginia, Maryland, and Pennsylvania. Open-File Report 2015-1061. US Geological Survey doi:10.3133/ofr20151061 | Report (issue) | | the Devonian Shales in the Broadtop Synclinorium, Appalachian Basin, in Virginia, West Virginia, Maryland...Acting Director U.S. Geological Survey, Reston, Virginia: 2015 For more information on the USGSâthe Federal...the Devonian shales in the Broadtop synclinorium, Appalachian basin, in Virginia, West Virginia, Maryland...of the study area showing distribution of Middle Devonian shales, locations of cross sections shown on...and structure map showing distribution of Middle Devonian shales in the study area. Structural cross |  | | Report (issue) | | York Ohio Pennsylvania Tennessee Vermont Virginia West Virginia Wisconsin 18 20 22 26 40 41 42 43 47 53...world, such as sandstone-hosted lead deposits, shale-hosted massive sulfide deposits, and bedded barite...differentiated from Middle and Upper Ordovician host rocks because of the significance of the Middle Ordovician...of possibilities for discovery of sandstone- or shale-hosted deposits. Occurrences of sphalerite in coal...carbonate rocks, mainly dolomite, of Cambrian to Middle Ordovician age, with the exception of mineralization |  | | Report (issue) | | the coverâTurquois crystals from Lynch Station, Virginia; x ca.; pho tograph by Neal Ycdlin; color plates...C. A. Michael. COLD NUGGET FROM SPOTSYLVANIA COUNTY: Longest dimension approximately 13 cm., photograph...of Virginia R. V. DIETRICH* Professor of Geology and Associate Dean of Arts & Sciences, Virginia Polytechnic...Polytechnic Institute Research Division Bulletin 47 Virginia Polytechnic Institute, Blacksburg, Va. 24061 *... Š R. V. Dietrich and the Research Division of Virginia Polytechnic Institute, 1970 Printed and bound |  | | Report (volume) | | Area, Grant, Randolph, and Tucker Counties, West Virginia By KENNETH J. ENGLUND and RALPH C. WARLOW, U.S...area UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON:1980 UNITED STATES DEPARTMENT OF THE INTERIOR...area, Grant, Randolph, and Tucker Counties, West Virginia. (Studies related to wilderness-wilderness area)...Bibliography: p. 1. Mines and mineral resources-West Virginia-Dolly Sods Wilderness Area. I. Englund, Kenneth...of Documents, U.S. Government Printing Office Washington, D.C. 20402 STUDIES RELATED TO WILDERNESS WILDERNESS |  | | Journal (article/letter/editorial) | | closing in 1988. The deposit is hosted by Middle Devonian pelitic sediments in the Rhenohercynian terrane...including Meggen and those deposits in the Iberian Pyrite Belt. Introduction The Palaeozoic volcano-sedimentary...source of revenue for the German Emperors during the Middle Ages, and an Imperial residence was built for their...divided into three geological zones: the Upper, Middle and Lower Harz. The Rammelsberg deposit is located...Rhenohercynian is dominated by a succession of Devonian to Carboniferous clastic and volcanic rocks, and |  | Qiu, Liang, Yan, DanâPing, Yang, WenâXin, Cao, Wentao, Ren, Minghua, Gao, Tian, Dong, Jianmeng, Wang, FangâYue (2020) The timing of brittle deformation: An example from the Cenozoic faults in the Youjiang foldâthrust belt in southwestern China. Geological Journal, 55 (10). 6799-6809 doi:10.1002/gj.3840 | Journal (article/letter/editorial) | | Pacific Plate, it is essential to document and Middle Triassic to Cretaceous terrigenous clastic rocks...Triassic and are overlain by Early to Middle Devonian shale, siltstone, and strata in the basin are...normal faults. (c) Brachiopoda fossils in Lower Devonian shale. (d) Normal fault (red line) cutting an earlier...These faults cross-cut the Cambrian limestone, the Devonian clastic normal faults, grabens, and volcanic...part of the Cenozoic lithospheric exten- and Devonian, indicating that the normal faulting is younger |  | | Report (volume) | | Petroleum Geology of the Devonian and Mississippian Black Shale of Eastern North America Petroleum... Petroleum Geology of the Devonian and Mississippian Black Shale of Eastern North America Edited by JOHN B. ROEN...potent1al of the Devon1an and M1SSISS1pp1an black shale of the Appalach1an, Jllmo1s, and M1ch1gan basms...Petroleum geology of the Devoman-M1SS1ss1pp1an black shale of eastern North Amenca I ed1ted by John B Roen...b1bhograph1cal references Supt of Docs no I 19 3 1909 1 Shale-Umted States 2 Geology, Strat1graph1c-Devoman 3 |  | | Journal (article/letter/editorial) | | composed of Zn-calcite, siderite, smithsonite, silica, pyrite, melnikovite, sphalerite, galena, thiosulphates...Framboidal pyrite defined as spherical to subspherical aggregates of micron to submicron-sized pyrite is common...the redox interface (Ramdohr 1969). Individual pyrite crystals within framboids are oriented against...controversy concerns the genesis of framboidal pyrite. The aim of this paper is to study the microtextures...carbonate rocks with the Upper Carboniferous and Devonian siliciclastics (Dejonghe and Jans 1983). Samples |  | Tang, Ling, Song, Yan, Jiang, Zhenxue, Pang, Xiongqi, Li, Zhuo, Li, Qianwen, Li, Wei, Tang, Xianglu, Pan, Anliu (2019) Influencing Factors and Mathematical Prediction of Shale Adsorbed Gas Content in the Upper Triassic Yanchang Formation in the Ordos Basin, China. Minerals, 9 (5) 265 doi:10.3390/min9050265 | Journal (article/letter/editorial) | | Influencing Factors and Mathematical Prediction of Shale Adsorbed Gas Content in the Upper Triassic Yanchang...shales is crucial for accurately characterizing shale gas reservoirs and calculating resource potential...investigate geological factors influencing AGC, 15 shale samples collected from the Yanchang Formation underwent...Synthetic evaluation of AGC indicates that the Yanchang shale has an overall moderate AGC occupying about 58%...58% of the total, which is helpful to extend shale gas production time of the Yanchang reservoir. Though |  | | Book | | Comprehensive Example: The Cree de District, Colorado, USA 4.11. Summary 4.12. Recommended Reading .!CHAPTER...Accessory sulfide-group and oxide-group minerals (e.g., pyrite, arsenopyrite, magnetite, ilmenite), especially...culminating with the Creede vein type deposit (Colorado, USA) as a comprehensive example. The second part of the...995) Crust (a) Granite (b) Diabase (c) (Basalt) Shale Seawater ( d) Al 81 ,300 74,300 79,400 80...Intrusions related to flood basalts Duluth Complex, USA Nori!' sk-Tanakh, Siberia Ni-sulfide Ni-Cu sulfide |  | Zhu, Hongjian, Ju, Yiwen, Huang, Cheng, Qi, Yu, Ju, Liting, Yu, Kun, Li, Wuyang, Su, Xin, Feng, Hongye, Qiao, Peng (2019) Tectonic and Thermal Controls on the Nano-Micro Structural Characteristic in a Cambrian Organic-Rich Shale. Minerals, 9 (6) 354 doi:10.3390/min9060354 | Journal (article/letter/editorial) | | Structural Characteristic in a Cambrian Organic-Rich Shale Hongjian Zhu 1 , Yiwen Ju 1, *, Cheng Huang 1 ,...considered as potentially important strata for shale gas exploration. Naturally deformed samples from...natural gas production all over the world [1,2]. Shale gas exploration and development, initiated successfully...countries in the coming years [1â4]. Organic-rich shale currently produces commercial unconventional hydrocarbons...China are being studied for their potential as shale gas reservoirs [6â10]. Several studies have discussed |  | | Report (issue) | | UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON 1980 UNITED STATES DEPARTMENT OF THE INTERIOR...oic. 4. Geochemistry-Missouri. 5. Geochemistry-Middle West. I. Ebens, Richard J., joint author. II. Title...of Documents, U.S. Government Printing Office Washington, D.C. 20402 Stock Number 024-001-03307-1 CONTENTS...Limestone and dolomite ............................. . Shale .............................................. ..... 10. Diagram showing normative mineralogy of shale samples........................................ |  | | Report (issue) | | 1405-B UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON 1992 U.S. DEPARTMENT OF THE INTERIOR MANUEL...19.16:1405-B 1. Water, Underground-Middle West. 2. Aquifers-MiddlE: West. 3. Geology, Stratigraphic-Cambrian...-----------Shakopee Formation and equivalents ------Middle Ordovician Series -----------------------------Pre-St...Series ------------------------------Maquoketa Shale ------------------------------------ B1 2 2 3...System-------------------------------------------------Devonian System -------------------------------------- |  | Huang, Wenting, Liang, Huaying, Zhang, Jian, Wu, Jing, Chen, Xilian, Ren, Long (2019) Genesis of the Dachang Sn-polymetallic and Baoshan Cu ore deposits, and formation of a Cretaceous Sn-Cu ore belt from southwest China to western Myanmar. Ore Geology Reviews, 112. 103030 doi:10.1016/j.oregeorev.2019.103030 | Journal (article/letter/editorial) | | Jinningian (~970 Ma; Charvet et al., 1996), OrdovicianâDevonian Caledonian, late Permianâ Triassic Indosinian...intra-continental collision which resulted in Ordovicianâ Devonian magmatism, crustal thickening, and ductile deformation...Baoshan Terrane has a Paleoproterozoic basement. Devonian-Triassic limestone crops out sporadically on the...Dachang Sn-polymetallic ore field is located in the middle of the Danchi metallogenic belt, Guangxi Province...Strata in the Dachang ore field include Middle Devonian shale and argillaceous limestone interbedded |  | | Book | | onNewMinerals,Nomenclature andClass::ication. Co. County. EMPElectronmicroprobe - an instrument usedto ...with older fluorite specimens from Weardale in County Durham being a case in point. Many of these specimens..."Cumberland", "Alston" or "Alston Moor" (Cumberland as a county no longer exists, as it was merged with Westmorland...Westmorland in the mid- I 970s to form the new county of Cumbria). The confusion appears to have occurred during... for whatever reason, they opted to change the county of origin (Fisher 2004). The Cornish dealer Richard |  | | Report (edition) | | CHAPTER I I . LOWER DEVONIAN ⢠⢠⢠⢠⢠CHAPTER I I I . - M I D DLE DEVONIAN ⢠â˘â˘ ⢠⢠⢠⢠⢠â˘...M I D D L E - U P P E R DEVONIAN ⢠⢠C H A P T E V.- U P P E R DEVONIAN R ⢠⢠⢠CHAPTER V I...inverted Lower o n Middle Devonian rocks ; north of Dartmouth 5.âSharp fold in Devonian Limestone . . ....Goodrington IP z6.âOddicombe; c l i f f s o f Devonian and New Red Sandstone p g . ⢠⢠⢠⢠I r . ...PA G E PLATE I I . âDevonian Fossils ⢠â˘â˘ d ⢠⢠e ⢠.⢠PLATE I I I . âDevonian Fossils ⢠⢠⢠⢠⢠⢠⢠|  | Harris, Norman, Fenton, Carroll Lane, Cooper, Chalmer L., Collins, Henry Hill, Haslau-Perry, Olivia V. - Eds. (1961) Larousse Encyclopedia of The Earth (1st ed.) Prometheus Press, New York. | Book (edition) | | from selected minerals. These from pocket knives shale into cement, things keep our complex, crowded civilisation...Arizona, design has begun on a tele- The Mount Washington weather observatory The television tower seen...holding the recording and photographic apparatus, middle chambers carrying reserves of oxygen and fuel,...are quoted daily, even keeping temperatures in middle and high latitudes from dropping to extremes during...mild affairs that are experienced daily in the middle latitudes. Listed according to increasing severity |  | | Book | | . . . . . . . . . . . . . . . . . 2.2.1 AltayâMiddle MongoliaâHailar Early Paleozoic AccretionâCollision.... . . . . . . . . . . . 2.5.11 AnatoliaâTehran Middle CretaceousâPaleocene Collision Zone (100â56 Ma)...Transformation Line of OkhotskâWestern DahingganlingâMiddle ShanxiâWuling MountainsâTak of Thailand [67] ....(1800â1600 Ma) . . 3.2 The Tectonic Evolution in EarlyâMiddle Mesoproterozoic (1600â1200 Ma) . . . . . . . ....(1200â1000 Ma) . . 3.4 The Tectonic Evolution in Middle Neoproterozoic ( 850 Ma) . . . . 3.5 The Tectonic |
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