Tectono-stratigraphic development of the Coastal Group of south-eastern Jamaica

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• 作者：Sherene A. James-Williamson ; Simon F. Mitchell ; Ryan Ramsook
• 关键词：Jamaica ; Tectono-stratigraphy ; Neogene ; Coastal group ; Caribbean ; Flower structure
• 刊名：Journal of South American Earth Sciences
• 出版年：March, 2014
• 年：2014
• 卷：50
• 期：Complete
• 页码：40-47
• 全文大小：1987 K

文摘

The sedimentary succession of southeastern Jamaica preserves a depositional record of accommodation changes and tectonic events for the last 14聽Ma. The depositional systems which occur in the area have been classified according to distinct tectono-stratigraphic packages based on the depositional environments, rapid facies changes, and or significant erosion surfaces. This paper places the sedimentology and geochemistry within a tectonic evolutionary framework for the northern margin of the Caribbean Plate over the last 14聽Ma. This involves considering issues of changing accommodation; deformation episodes including folding and faulting and the subsequent cutting of unconformities. A model for the tectono-stratigraphic development of southeastern Jamaica is also proposed. The model incorporates critical surfaces, major faults, subsidence and uplift which later influence the depositional environments.