Download or read book Eagle Ford Boquillas Formation and Associated Strata in Val Verde County Texas written by Core Laboratories and published by . This book was released on 2010 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Finding Sweet Spots written by Victoria Chevrot and published by . This book was released on 2019 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Boquillas Transgressive Systems Tract in Val Verde and Terrell Counties written by Nicholas P. Whitcomb and published by . This book was released on 2011 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bulletin of the South Texas Geological Society written by and published by . This book was released on 2010 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field Guide to the Eagle Ford Boquillas Formation West Texas written by Arthur D. Donovan and published by . This book was released on 2011 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Upper Cretaceous Stratigraphy of the Western Gulf Coast Area of M xico Texas and Arkansas written by Emile A. Pessagno and published by Geological Society of America. This book was released on 1969 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geology of the Comstock Indian Wells Area Val Verde Terrell and Brewster Counties Texas written by Val L. Freeman and published by . This book was released on 1968 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: A description of the petrography and structure of the sedimentary rocks along the Rio Grande in the vicinity of the mouth of the Pecos River.

Download or read book The Geology of Texas written by Elias Howard Sellards and published by . This book was released on 1933 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geological Survey Professional Paper written by and published by . This book was released on 1968 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geological Survey Professional Paper written by Geological Survey (U.S.) and published by . This book was released on 1968 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lateral Continuity of the Eagle Ford Group Strata in Lozier Canyon and Antonio Creek Terrell County Texas written by Rand David Gardner and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding of the local lateral heterogeneity within the Eagle Ford Group, a prolific mudstone reservoir on the Texas Gulf Coast, is hindered by a lack of well-preserved outcrops in close proximity to one another. Misinformation or over simplistic assumptions about relevant horizontal reservoir heterogeneities can lead to sub-optimal or uneconomical exploitation. High-resolution correlation of individual beds in the Eagle Ford Group over several miles in Lozier Canyon and Antonio Creek in Terrell County, West Texas, was used to document lateral variation in thickness, composition, sedimentary structures, and gamma ray response of these strata on a local scale. Physical tracing of the beds on outcrops and within Gigapan photomosaics, hand-held spectral gamma-ray scintillometer profiles, and examination of polished hand samples and thin sections were used to correlate Eagle Ford Group strata across Lozier Canyon and Antonio Creek. The results add value by increasing the understanding of local horizontal heterogeneities and the depositional environments of Eagle Ford Group strata and potentially influencing how and where wells are drilled and completed. Five distinct lithostratigraphic units, termed A-E from the base up, and their subunits, are laterally continuous over several miles in terms of thickness, lithology, and spectral gamma ray response. However, there are notable differences in thickness and sedimentary structures in units A and B. Unit A has the largest difference in thickness (7%), suggesting higher accommodation in the southeast part of the study area. Moreover, sedimentary structures and bed morphology of skeletal packstone beds in unit B, the primary target of horizontal wells in the subsurface, vary over a 4-mi interval from discontinuous lenses to laterally continuous stacked beds. Simulated wireline logs obtained from outcrop exposures suggest that spectral gamma ray data is superior to total gamma ray data in correctly identifying the most desirable sub units for completion. Geochemical data and trace fossil abundance suggest primarily anoxic bottom water conditions during deposition of the Lower Eagle Ford Formation and oxic conditions during deposition of the Upper Eagle Ford Formation. Widespread zones of deformed bedding within the Eagle Ford Group strata typify certain units and were likely caused by paleoseismicity. Laterally extensive bedding plane exposures in Antonio Creek provide three-dimensional views of macrofossils and the bedform morphology that were previously only described from two-dimensional outcrops. Sedimentary structures suggest that units A, C, D, and E were deposited above storm wave base; and deposition of unit B was episodically above storm wave base. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/151670

Download or read book Geology of the Big Bend Area Texas written by West Texas Geological Society and published by . This book was released on 1972 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Geological Survey Professional Paper written by and published by . This book was released on 1967 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Val Verde Basin written by and published by . This book was released on 1995 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bulletin written by University of Texas at Austin and published by . This book was released on 1934 with total page 902 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stratigraphy of the Eagle Ford Group upper Cretaceous and Its Source rock Potential in the East Texas Basin written by Cleavy L. McKnight and published by . This book was released on 1982 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U Pb Geochronology of the Late Cretaceous Eagle Ford Shale Texas written by John Donald Pierce and published by . This book was released on 2014 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Eagle Ford Shale and equivalent Boquillas Formation (Late Cretaceous) contain abundant volcanic ash beds of varying thickness. These ash beds represent a unique facies that displays a range of sedimentary structures, bed continuity, and diagenetic alteration. They are prominent not only in West Texas outcrops, but also in the subsurface of South Texas where hydrocarbon production is actively occurring. The ash beds have the potential to be used for stratigraphic correlation for understanding early diagenesis and -- most importantly -- for obtaining high-resolution geochronology, which can then be used for defining depositional rates and chronostratigraphy. Study of the ash beds was conducted at outcrops along U.S. 90, west of Comstock, Texas, the subsurface in Atascosa and Karnes County, and at a construction site in South Austin. Bed thicknesses range from 0.1-33 cm and were collected throughout the entirety of the Eagle Ford succession. Mineral separation yielded abundant non-detrital zircons for U-Pb dating. Dating was conducted using LA-ICP-MS at The University of Texas at Austin, to attain a base level understanding of the age range for the Eagle Ford. High-resolution ages for the base and top of the Eagle Ford were obtained, in addition to radioisotopically defining the Cenomanian-Turonian boundary within the section. U-Pb ages for the Eagle Ford Shale range from Early Cenomanian to Late-Coniacian near Comstock, Mid-Cenomanian to the Turonian-Coniacian boundary in the subsurface, and Early Cenomanian to Late Turonian in Austin area. These findings contrast with many of the regional biostratigraphic studies across the Eagle Ford and indicate a more prolonged period of Eagle Ford deposition than previously observed.