19 Depositional systems and resource distribution in eastern and southern North America: from orogens to coastal plains
We welcome studies related to the sourcing, dispersal, and deposition of clastic sediments from the hinterlands to the coast, including the provenance, paleogeography, sedimentology, and economic significance of these deposits.
Tuesday, 10 March 2026
8:30 AM - 11:30 AM
RCC, 105
Efforts in calibrating Atokan Series sedimentation in the Arkoma Basin
Paper number: 19-1
Program: Technical Sessions
Time: 8:35 AM – 8:50 AM
Authors
Abstract
Cyclicity should be present at varying scales in basinal facies. The fundamental control on cyclical sedimentation during Atokan-time in the Arkoma Basin was eustasy influenced by tectonism and sedimentation. Facies shifts during sea level alterations resulted in repeated sandstone- and shale-rich units at various scales. The entire sedimentation history of the Arkoma Basin is short-lived and at a grand volume, diluting the rock record with sediment and rendering radiometric dating and some biostratigraphy as ineffective cycle measurement tools. The wealth of data from industry and studying outcrop at a fine scale has been useful, however.
This research project covers the detection of Arkoma Basin Atokan-time sedimentation cycles at fine-scale intervals (using 0.05 m sampling) in outcrop, up to time-averaged cuttings from drilled wells (about every 10 m), and to gamma-ray data spanning Upper Atoka strata from well-logs (on the order of 103 m). Detecting cycles at these varying intervals assists in interpreting controls and frameworks of Pennsylvanian-aged depositional environments generating high volumes of terrigenous materials.
Geological Society of America Abstracts with Programs. Vol. 58, No. 1
doi: 10.1130/abs/2026SE-411723
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