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Fredericksburg-Washita contact

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Journal Article
Journal: AAPG Bulletin
Published: 01 December 1934
AAPG Bulletin (1934) 18 (12): 1698–1705.
... of assurance that the Fredericksburg-Washita contact lies in the vicinity of the Gryphaea bed. It is possible that this fossiliferous zone represents both the Kiamichi and the Duck Creek of the lower Washita, but no characteristic Kiamichi fossils have been identified. In view of the widespread occurrence...
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Journal Article
Journal: AAPG Bulletin
Published: 01 October 1938
AAPG Bulletin (1938) 22 (10): 1423–1439.
... consisting of Comanche Peak limestone, the Edwards formation, and the Kiamichi clay all of Fredericksburg age; and an upper portion of Washita age made up of the Georgetown limestone and the overlying Grayson clay and Buda limestone. Only the top member of the Washita group, the Buda limestone, crops out...
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Image
—<b>Contact</b> of soft <b>Washita</b> (Georgetown) limestone containing  Gryphaea  with ...
Published: 01 December 1934
FIG. 4. —Contact of soft Washita (Georgetown) limestone containing Gryphaea with harder non-fossiliferous Fredericksburg (Edwards) limestone, southeastern Sutton County, Texas.
Image
—<b>Contact</b> of fossiliferous <b>Washita</b> (Georgetown) limestone containing  Grypha...
Published: 01 December 1934
FIG. 3. —Contact of fossiliferous Washita (Georgetown) limestone containing Gryphaea and underlying Fredericksburg (Edwards) limestone. Photograph shows difference in character of the two deposits, southeastern Sutton County, Texas.
Journal Article
Journal: AAPG Bulletin
Published: 01 October 1935
AAPG Bulletin (1935) 19 (10): 1508–1537.
.... The Fredericksburg group is shown to include only two formations, the Kiamichi clay and the Gatesville. It is separated from the overlying Washita group in North-Central Texas and Southwest Texas by an unconformity, but in West Texas in Pecos County there is no indicated break in sedimentation. The contact...
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Series: GCSSEPM, GCSSEPM
Published: 01 December 2016
DOI: 10.5724/gcs.15.35.0536
EISBN: 978-1-944966-10-2
... of the Kainer and Person formations; the latter unit is disconformably overlain by the Georgetown Formation of the Washita Group. This unconformity is a bored iron-stained eroded contact that is traced northward where it separates the Fredericksburg Group from the Washita Group and is named Albian Sequence...
Journal Article
Journal: AAPG Bulletin
Published: 01 January 1964
AAPG Bulletin (1964) 48 (1): 1–21.
... they are readily distinguishable; the Washita-Fredericksburg contains numerous thin limestones which have distinctive electric log resistivity character. In short, the critical stratigraphic contacts which are essential in mapping paleotopography are readily discernible on electric logs. This is not true in some...
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Journal Article
Journal: AAPG Bulletin
Published: 01 August 1943
AAPG Bulletin (1943) 27 (8): 1060–1080.
... time scale. The boundary in the section discussed is at the contact of the Kiamichi and Duck Creek formations. Percentage relationships of the Foraminifera from the Kiamichi do not indicate a decided affinity with either undisputed Duck Creek Washita or undisputed Goodland Fredericksburg...
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Journal Article
Journal: AAPG Bulletin
Published: 01 July 1932
AAPG Bulletin (1932) 16 (7): 691–700.
...Lon D. Cartwright, Jr. ABSTRACT The surface rocks of the Edwards Plateau are of Lower Cretaceous age, and comprise the Trinity, Fredericksburg, and Washita divisions. The Trinity division was deposited by a sea encroaching upon an upland plain, traversed by several broad south- and east-draining...
FIGURES
Journal Article
Journal: AAPG Bulletin
Published: 01 March 1960
AAPG Bulletin (1960) 44 (3): 316–356.
... thickness of the Midway near the Midway-Wilcox contact is probably 700–750 feet. Pronounced movement occurred on the Sulphur Bluff fault throughout upper Glen Rose and Paluxy time. In Washita-Fredericksburg time, this movement was large and definitely continuous and carried over into basal Woodbine...
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Journal Article
Journal: AAPG Bulletin
Published: 01 February 1945
AAPG Bulletin (1945) 29 (2): 170–186.
... of Texas as well as adjacent parts of Oklahoma and Arkansas, it is very probable that this unconformity is present throughout this region. ln southwest Arkansas on the Oklahoma line near Cerrogordo, the Woodbine rests directly on the Fredericksburg (all the Washita group has been truncated) and farther...
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Journal Article
Published: 15 April 2018
Journal of Paleontology (2018) 92 (4): 611–633.
... of the Glen Rose Formation. These species occupied shallow shelf marls and successive species became larger. The cylindrical forms, H. budaensis, H. auroraensis, H. bravoensis Böse, 1910 , H. vulgaris , and H. washitae , first appeared in the late Albian in the Del Norte Formation, southwest Texas...
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Journal Article
Journal: AAPG Bulletin
Published: 01 February 1958
AAPG Bulletin (1958) 42 (2): 371–386.
... outcrops is virtually complete, but additional field work on Permian, Gulfian, Tertiary, and Quaternary deposits is necessary. The Comanchean strata exposed in the Kent Quadrangle have heretofore been assigned to the Trinity, Fredericksburg, and Washita groups, but the assignment is based solely...
FIGURES
Journal Article
Journal: AAPG Bulletin
Published: 01 January 1921
AAPG Bulletin (1921) 5 (1): 5–28.
... Rose probably represent the Aptian. The Travis Peak is certainly Aptian. Somewhat less certain is the position of the Fredericksburg division, the lower part of which seems certainly Albian and the upper part possibly lower Cenomanian. All of the Washita division is thought to be Cenomanian...
Journal Article
Journal: AAPG Bulletin
Published: 01 February 1971
AAPG Bulletin (1971) 55 (2): 241–253.
.... 7 ) is south of Broken Bow, Oklahoma, and is about 5 mi long. The pre-Woodbine surface is preserved for less than ½ mi updip on Washita beds (LKw, Comanchean). The dip slopes at the base and top of the Fredericksburg (LKf) limestone would be difficult to distinguish from the unconformity surface...
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Journal Article
Journal: AAPG Bulletin
Published: 01 January 1945
AAPG Bulletin (1945) 29 (1): 96–100.
... of this line, the Goodland limestone, and the overlying Washita limestones and shales have been recognized in many wells. The Holly field is just west of the buried Fredericksburg-Paluxy contact. A southwest-northeast structural section, made with electrical logs, shows that in the Holly field, a channel...
FIGURES
Journal Article
Journal: AAPG Bulletin
Published: 01 March 1942
AAPG Bulletin (1942) 26 (3): 380–386.
.... Comanche seas then advanced over the western Edwards Plateau depositing basal Trinity sands, some Glen Rose marls, and later, the limestones and clays of the Fredericksburg and Washita groups. R. T. Hill 3 named the eroded land surface formed during the Jurassic and earliest Cretaceous periods...
FIGURES
Journal Article
Journal: AAPG Bulletin
Published: 01 July 1970
AAPG Bulletin (1970) 54 (7): 1225–1244.
... are time equivalents of the uppermost Fredericksburg rocks in Texas. Most of the Kiowa is equivalent to Washita units through the Denton Formation in North Texas. The Tucumcari and Glencairn correlate with upper parts of the Kiowa in southern Kansas. Part of the Lytle is equivalent to lower parts...
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Journal Article
Journal: AAPG Bulletin
Published: 01 January 1967
AAPG Bulletin (1967) 51 (1): 4–27.
... be tilted, raised or lowered, or warped into anticlines and synclines, or it may remain static. The second largest unconformity shown on the map is at the base of the Upper Cretaceous Woodbine Group (Kwb). Beginning at the west, this unconformity cuts gradually across the Washita (Kw) and Fredericksburg...
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Journal Article
Journal: AAPG Bulletin
Published: 01 June 1933
AAPG Bulletin (1933) 17 (6): 656–679.
... Acknowledgments .—The writers are indebted directly and indirectly to many individuals for suggestions and helpful criticisms. Formation contacts, wherever possible, are based on paleontological evidence. These determinations are from several sources, but particular thanks are due N. L. Thomas and Harold Herndon...
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