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Ramsey Member

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Journal Article
Journal: AAPG Bulletin
Published: 01 April 1984
AAPG Bulletin (1984) 68 (4): 524.
... (Reeves and Culberson Counties), the Ramsey sandstone member, uppermost sand of the Bell Canyon Formation, was deposited in a deep-water, sediment-starved, euxinic basin. Bottom-hugging hypersaline density currents spilling off the shelf through breaches in the Permian platform margin gouged elongate...
Journal Article
Journal: AAPG Bulletin
Published: 01 November 1940
AAPG Bulletin (1940) 24 (11): 1995–2005.
...V. L. Frost ABSTRACT The Ramsey oil pool, located 6 miles southwest of Stillwater, Payne County, Oklahoma, was discovered in 1938. Interesting surface faulting and core-drill data instigated geophysical prospecting in this area and led to the discovery of the pool. The subsurface structure...
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Image
Figure 2. Stratigraphic framework for the seven floral assemblages (filled circles). Land mammal “age” (see Prothero, 1995, for use of quotations) and subage boundaries are after Wing et al. (1999), except the Wasatchian-Bridgerian boundary (after Krishtalka et al., 1987). The Paleocene-Eocene boundary, currently unresolved (Berggren et al., 1997), is set here to the Clarkforkian-Wasatchian boundary. The early–middle Eocene boundary is after Cande and Kent (1992, 1995). Solid vertical line—estimated stratigraphic lumping; dashed vertical lineage uncertainty; Tfu—Fort Union Formation (fluvial); Tw—Wasatch Formation (fluvial): Twm—Main Body, events interpolated using Roehler (1992c) and Hutchison (1980); Twrr—Ramsey Ranch Member; Twn—Niland Tongue; Twc—Cathedral Bluffs Tongue. Tg—Green River Formation (lacustrine): Tglu—Luman Tongue; Tgt—Tipton Shale Member; Tgw—Wilkins Peak Member; Tgl—Laney Member. Tb—Bridger Formation (fluvial). Twa—Washakie Formation (fluvial). Ly—Lysitean. Numbers along right side of column indicate maximum areal extents of indicated phases of Green River lakes, in thousands of square kilometers, from Roehler (1993).
Published: 01 February 2000
Formation (fluvial); Tw—Wasatch Formation (fluvial): Twm—Main Body, events interpolated using Roehler (1992c) and Hutchison (1980) ; Twrr—Ramsey Ranch Member; Twn—Niland Tongue; Twc—Cathedral Bluffs Tongue. Tg—Green River Formation (lacustrine): Tglu—Luman Tongue; Tgt—Tipton Shale Member; Tgw—Wilkins
Image
Ternary diagrams illustrating quartz (Q)–feldspar (F)–lithic grains (L) and monocrystalline quartz (Qm)–feldspar (F)– total lithic grains (Lt) data with new and previously published Arkoma Basin sandstone compositions displayed as their North American stages. Colored shading illustrates the distribution of samples from each stage, which are colored according to the color of associated data points except for one Chesterian outlier sample that exhibited high lithic and total lithic counts due to the abundances of carbonate grains. Black dashed line encircling a subset of Desmoinesian data points highlights the distribution of Bluejacket Sandstone Member samples. New thin section metadata are in SD5, and referenced and new point-count data are in SD6 (see text footnote 1). Sources for referenced point-count data are: Ramsey (1983); Gangopadhyay and Heydar (1995); Allen (2010); Bello (2017); Corbin (2020).
Published: 02 August 2024
highlights the distribution of Bluejacket Sandstone Member samples. New thin section metadata are in SD5, and referenced and new point-count data are in SD6 (see text footnote 1 ). Sources for referenced point-count data are: Ramsey (1983) ; Gangopadhyay and Heydar (1995) ; Allen (2010) ; Bello (2017
Journal Article
Published: 01 August 1985
Journal of the Geological Society (1985) 142 (4): 591–613.
... Bendro. Penecontemporaneous sliding of sediments From Aber Mawr around the northern and eastern parts of Ramsey Island to The Bitches, planes of sliding cut through all strata ranging in age from late Cambrian to early Llanvirn (Dark Mudstone Member of the Aber Mawr Formation). The sole-slide (Road Uchaf...
Journal Article
Journal: AAPG Bulletin
Published: 01 April 1976
AAPG Bulletin (1976) 60 (4): 517–527.
... of the Lamar Member. The Ramsey, Ford, and Olds were designated by Nottingham (1960) as subsurface units of wide areal extent, and the Ramsey and Olds are oil reservoirs in the basin. Figure 4 illustrates the subsurface units as they are defined in gamma-ray and sonic logs. Fig. 4 —Subsurface...
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Journal Article
Journal: GSA Bulletin
Published: 01 July 2011
GSA Bulletin (2011) 123 (7-8): 1628–1644.
... spectra as linear mixtures of pure spectral end members ( Ramsey and Christensen, 1998 ). The best fit between the measured and modeled spectra was achieved by a chi-square minimization. The spectral end members were chosen from a library of minerals and were modeled as combinations of the spectra...
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Series: Short Courses
Published: 01 January 2004
DOI: 10.3749/9780921294771.ch08
EISBN: 978-0-921294-77-1
... (end-members) are known, TIR spectra can be linearly deconvolved in order to ascertain those end-member percentages ( Thomson & Salisbury 1993 , Ramsey & Christensen 1998 , Ramsey & Fink 1999 , Hamilton, 2003 ). Mineral identification and mapping of natural materials using this approach...
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Journal Article
Journal: Geology
Published: 08 January 2024
Geology (2024) 52 (3): 205–209.
...) constructed a detailed lithofacies log that he also converted into a discretized numerical log, with its two end-members being shaly siltstones (low values) and dark, often biohermal, limestones (high values) ( Fig. 2B ). He also recognized several orders of bundled cyclicity with a basic ~5 m “rhythm”; ~25 m...
FIGURES
Journal Article
Journal: Elements
Published: 01 April 2025
Elements (2025) 21 (2): 125.
... ƒ Sampling as Part of the Measurement Process by Michael H Ramsey ƒ The Inductively Coupled Plasma by Kathryn L. Linge ƒ Principles and Practice of X-Ray Fluorescence Spectrometry 1: Fundamentals of XRF and Matrix Corrections by Kenneth E. Turner and Elizabeth Webber ƒ Quadrupole Inductively Coupled Plasma...
Journal Article
Published: 01 July 2007
American Mineralogist (2007) 92 (7): 1148–1157.
... algorithm models an emissivity spectrum using a linear combination of specific end-members (e.g., Thompson and Salisbury 1993 ; Ramsey and Christensen 1998 ; Ramsey 2002 ; Bandfield 2002 ; Dennison et al. 2004 ) by solving for the best subset of mineral components from a larger reference library (e.g...
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Journal Article
Journal: AAPG Bulletin
Published: 01 March 1988
AAPG Bulletin (1988) 72 (3): 299–317.
...-Capitan-Lamar), Capitan reef complex, west Texas and New Mexico , in G. M. Friedman , ed., Depositional environments in carbonate rocks: SEPM Special Publication 14 , p. 80 – 97 . Watson , W. G. , 1979 , Inhomogeneities of the Ramsey member of the Permian Bell Canyon Formation...
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Journal Article
Published: 08 January 2020
Journal of Sedimentary Research (2020) 90 (11): 1510–1526.
...C. Robin Mattheus; Kelvin W. Ramsey; Jaime L. Tomlinson ABSTRACT While Quaternary incised valleys have been abundantly studied along passive continental margins, little work has addressed the development, reoccupation, and infilling of systems with small drainage basins that originate near...
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Journal Article
Journal: GSA Bulletin
Published: 01 May 1999
GSA Bulletin (1999) 111 (5): 646–662.
...Michael S. Ramsey; Philip R. Christensen; Nicholas Lancaster; Douglas A. Howard Abstract The Kelso dune field is located in the eastern Mojave Desert, California, at the terminus of a sand-transport pathway, which has its primary source at the Mojave River Wash 50 km to the west. Initial...
Journal Article
Published: 01 May 1990
Journal of the Geological Society (1990) 147 (3): 507–518.
... reconstructions based on the assumption of contemporaneity of large-scale fades tracts (formations and members) must be abandoned. Instead stratigraphic interpretation requires the recognition and application of a genetic unit of analysis consistent with the actual internal allogenic fabric of such sequences...
Journal Article
Published: 01 August 2010
Geochemistry: Exploration, Environment, Analysis (2010) 10 (3): 251–259.
... measured and controlled’ ( Thompson & Howarth 1973 ). The rare exceptions were, of course, those laboratories involved in applied geochemistry. The methods employed and devised in the AGRG became progressively more informative, and on a firmer conceptual foundation, as time passed ( Ramsey et al...
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Journal Article
Journal: Elements
Published: 01 October 2022
Elements (2022) 18 (5): 348.
... the sponsors of these awards who every year enable students, early career researchers, and researchers from low-income nations to travel to annual meetings in order to facilitate career-enhancing interactions with a wide array of international society members. Barringer Crater Company Award Nicola Allen, Kana...
Journal Article
Journal: GSA Bulletin
Published: 01 February 2000
GSA Bulletin (2000) 112 (2): 292–307.
... Formation (fluvial); Tw—Wasatch Formation (fluvial): Twm—Main Body, events interpolated using Roehler (1992c) and Hutchison (1980) ; Twrr—Ramsey Ranch Member; Twn—Niland Tongue; Twc—Cathedral Bluffs Tongue. Tg—Green River Formation (lacustrine): Tglu—Luman Tongue; Tgt—Tipton Shale Member; Tgw—Wilkins...
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Journal Article
Journal: AAPG Bulletin
Published: 01 July 1975
AAPG Bulletin (1975) 59 (7): 1217–1221.
... (in editorial prep.). Fig. 1 —Correlation of Devonian rocks from Illinois basin to Michigan basin showing relations of Tioga Bentonite Bed (from Droste and Shaver, 1975 ). Relatively new rock-stratigraphic names, both published and as yet unpublished, are: Cranberry Marsh Member, Milan Center Dolomite...
FIGURES
Journal Article
Journal: AAPG Bulletin
Published: 01 November 1924
AAPG Bulletin (1924) 8 (6): 830–831.
... obtained by S. C. Lind and D. C. Bardwell, of the U. S. Bureau of Mines. Attention has been called to the occurrence of vanadium and nickel in petroleum by DeGolyer on page 550, Volume 19, of Economic Geology , and by Ramsey’s paper abstracted by Hess in this Bulletin . Wells has also submitted...