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Articles 1 - 7 of 7
Full-Text Articles in Geology
Lithostratigraphic Correlation Of Upper Paleozoic Sandstone Bodies In The Western United States With Special Emphasis On The Coconino Sandstone, John H. Whitmore
Lithostratigraphic Correlation Of Upper Paleozoic Sandstone Bodies In The Western United States With Special Emphasis On The Coconino Sandstone, John H. Whitmore
The Research and Scholarship Symposium (2013-2019)
The purpose of this project was to correlate Upper Paleozoic sandstone bodies of Pennsylvanian and Permian age across the western United States. The lateral extent of the Coconino Sandstone (Leonardian) was of particular interest; it is found in northern Arizona in places like Grand Canyon. Data was obtained from multiple sources including the AAPG’s COSUNA charts and data, the RMAG’s Geological Atlas of the Rocky Mountain Region and published papers from a variety of books and journals. About 60 generalized stratigraphic columns were collected, drawn and then correlated across the western United States. Some of the more well-known sandstones and …
Global Stratigraphy And The Fossil Record Validate A Flood Origin For The Geologic Column, Timothy L. Clarey, Davis J. Werner
Global Stratigraphy And The Fossil Record Validate A Flood Origin For The Geologic Column, Timothy L. Clarey, Davis J. Werner
Proceedings of the International Conference on Creationism
The geologic column has been under the scrutiny of numerous creationists for many decades. Critics have claimed the column is intimately tied to the evolutionary worldview and deep time, and cannot be trusted or used by creation scientists. Other creation scientists have argued that the geologic column, although incomplete at most locations, can provide useful correlations of rocks and fossils across the globe. This paper examines the sedimentary rocks across three continents in an attempt to test the validity of the global geologic column. We attempted to assess the data primarily from a lithologic viewpoint, and as independent of the …
Use Of Sedimentary Megasequences To Re-Create Pre-Flood Geography, Timothy L. Clarey, Davis J. Werner
Use Of Sedimentary Megasequences To Re-Create Pre-Flood Geography, Timothy L. Clarey, Davis J. Werner
Proceedings of the International Conference on Creationism
Knowledge of pre-Flood geography and the location of the Garden of Eden have eluded Bible-believing scientists and theologians. This study attempts to reconstruct the gross geography of the pre-Flood world by examining the detailed stratigraphy that was deposited during the Flood. Over 1500 stratigraphic columns were constructed across North and South America and Africa, recording the lithology and stratigraphy at each location. Sedimentary layers were examined using Sloss-type megasequences which allowed detailed analysis of the progression of the Flood in six discrete depositional segments. The three earliest megasequences, Sauk, Tippecanoe and Kaskaskia, were the most limited in areal coverage and …
Global Deposits Of In Situ Upper Cambrian Microbialites: Implications For A Cohesive Model Of Origins, Ken P. Coulson
Global Deposits Of In Situ Upper Cambrian Microbialites: Implications For A Cohesive Model Of Origins, Ken P. Coulson
Proceedings of the International Conference on Creationism
The existence of in situ microbialites of biological origin located in upper Cambrian rocks in western Utah presents some problems for creationists as they seek to define the boundary that separates pre-Flood deposits from those that were deposited during the Flood event itself. These microbialites are extensive in nature, covering an area of at least 2600 km2, and are stacked one atop the other in multiple beds that span a thickness of at least 300 m, but could be as thick as several km (intercalated between wackestone wedges). Other microbialites found throughout similar upper Cambrian rocks in Nevada and California …
Preliminary Correlation And Isopach Map Of Navajo-Aztec-Nugget Sandstones, Western United States, Emily Jackson
Preliminary Correlation And Isopach Map Of Navajo-Aztec-Nugget Sandstones, Western United States, Emily Jackson
The Research and Scholarship Symposium (2013-2019)
Lower and middle Jurassic sandstones across western North America were correlated using stratigraphic thickness and lithofacies data obtained from the AAPG-produced Correlation of Stratigraphic Units of North America (COSUNA) data charts and spreadsheets. An isopach map and a series of stratigraphic cross-sections were created to display the lateral and horizontal extent of the correlated formations. The goal was to determine lateral equivalents of the primarily lower Jurassic Navajo Sandstone from Utah, Arizona, and Colorado. The Nugget Sandstone of Wyoming, Utah, and southern Idaho, and the Aztec Sandstone of southeastern California and southern Nevada were determined to be laterally equivalent to …
Correlation Of Basal Cambrian Sandstones Across North America, Joshua W. Perez
Correlation Of Basal Cambrian Sandstones Across North America, Joshua W. Perez
The Research and Scholarship Symposium (2013-2019)
A thin, widespread sequence of siliciclastic strata ranging from lower to upper Cambrian age overlies Precambrian crystalline and metamorphic basement rock bounded by the Great Unconformity. This sequence is mainly comprised of basal Cambrian sandstones which can be subdivided into three distinct suites of lithofacies transitioning in age across most of North America. From the west, which is most notable for the Tapeats sandstone of Arizona and Nevada, lies gravelly to boulder sized conglomerates directly overlying basement rock. Eastward, the lower to middle Cambrian consists of a variety of ledge-forming sandstones which contain various areas rich in cross bedded, as …
Preliminary Correlation And Isopach Map Of Pennsylvanian And Permian Sandstones Of The Western United States, John H. Whitmore
Preliminary Correlation And Isopach Map Of Pennsylvanian And Permian Sandstones Of The Western United States, John H. Whitmore
The Research and Scholarship Symposium (2013-2019)
Using the COSUNA data compiled by the AAPG in the 1980’s, Permian and Pennsylvanian sandstones were correlated across western North America. Stratigraphic sections and thickness information were obtained from charts and spreadsheets available from that data set. An isopach map was constructed from the thickness data of sandstones usually found below a Guadalupian Limestone. In particular, this project was concerned with sandstones that could be lithostratigraphically correlated with the Leonardian Coconino Sandstone of the Grand Canyon region of northern Arizona. These sandstones are mostly Lower Permian (Leonardian and Wolfcampian) but some are Upper Pennsylvanian, especially in the northern part of …