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Full-Text Articles in Physical Sciences and Mathematics
Hydrothermally Emplaced, Lower Mississippian, Tripolitic Chert And Its Possible Relationship To The Tri-State Lead-Zinc Mining District, J. Chick, J. Cains, F. Mcfarlin, S. Mckim, A. Potra
Hydrothermally Emplaced, Lower Mississippian, Tripolitic Chert And Its Possible Relationship To The Tri-State Lead-Zinc Mining District, J. Chick, J. Cains, F. Mcfarlin, S. Mckim, A. Potra
Journal of the Arkansas Academy of Science
Across the southern Ozark Region, northern Arkansas, southwestern Missouri, and northeastern Oklahoma, exposures of the Lower Mississippian Boone Formation and its equivalents exhibit well-developed tripolitic chert that has been mined, more or less continuously, for at least 80 years. The tripolitic chert is a replacement of an interval within the basal portion of the upper Boone Formation in Arkansas and Oklahoma, and equivalent to the Elsey Formation in Missouri. The movement of silica-rich, hydrothermal fluids appears to have been much like that of a confined aquifer. It followed the basal upper Boone Formation (Arkansas) = Elsey Formation (Missouri) and was …
Lithologic Stratigraphic Position, Sequence And Diagenetic History, Lower Mississippian Tripolitic Chert, Northern Arkansas And Southern Missouri, S. Mckim, J. Cains, J. Chick, F. Mcfarlin, A. Potra
Lithologic Stratigraphic Position, Sequence And Diagenetic History, Lower Mississippian Tripolitic Chert, Northern Arkansas And Southern Missouri, S. Mckim, J. Cains, J. Chick, F. Mcfarlin, A. Potra
Journal of the Arkansas Academy of Science
Tripolitic chert development in the southern Ozark region is associated with a third-order, transgressive-regressive cycle comprising St. Joe transgressive packstones, succeeded by lower Boone calcisiltites, with black, penecontemporaneous, nodular chert deposited during maximum flooding, overlain by basal upper Boone calcisiltites deposited during highstand. The onset of regression produced upper Boone packstones and grainstones with white-gray, later diagenetic chert reflecting groundwater replacement along bedding planes. Tripolitic chert is a product of the highstand calcisiltites at the base of the upper Boone Formation of Arkansas, and its equivalent, the Elsey Formation of southern Missouri. This tripolitic chert appears to reflect a hydrothermal …
Sequence Stratigraphic And Tectono-Stratigraphic Successions, Ozark Shelf, Tri-State Region, Southern Midcontinent, E. C. Bello
Sequence Stratigraphic And Tectono-Stratigraphic Successions, Ozark Shelf, Tri-State Region, Southern Midcontinent, E. C. Bello
Journal of the Arkansas Academy of Science
The southern Ozark region, Arkansas, Missouri, and Oklahoma occupies the southern border of the North American craton. Its sedimentary succession preserves a complete Wilson Cycle reflecting the Late Precambrian-Cambrian rifting of Rodinia into the Laurussian and Gondwanan landmasses that opened the Iapetus Ocean Basin during the Late Cambrian-Middle Mississippian. The basin was closed during the Late Mississippian-Middle Pennsylvanian by the collision of Laurussia with Gondwana. During the Late Cambrian through the Middle Pennsylvanian, the Ozark Shelf, including its gently sloping, Northern Arkansas Structural Platform (NASP) and adjacent ramp, records both transgression and regression by epeiric seas as well as regional …