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Marine transgression and regression in Miocene sequences of northern Pegu (Bago) Yoma, Central Myanmar
http://hdl.handle.net/20.500.12678/0000002132
http://hdl.handle.net/20.500.12678/0000002132eadbe3e3-9a79-4999-9113-730a63f10ff4
fb8f343b-85f9-4fb5-8596-fac23d126209
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Journal article | ||||||
Upload type | ||||||
Publication | ||||||
Title | ||||||
Title | Marine transgression and regression in Miocene sequences of northern Pegu (Bago) Yoma, Central Myanmar | |||||
Language | en | |||||
Publication date | 1999 | |||||
Authors | ||||||
Kyi Khin | ||||||
Myitta | ||||||
Description | ||||||
Neogene strata of the northern part of the Pegu (Bago) Yoma Range, Cent ral Myanmar , con ta in a series of shallow marine clastic sediments with stratigraphic ages ranging from the Earl y to Late Miocene. The studied succession (around 750 m thick ) is composed of three major stratigraphic unit s deposit ed during a major regression and four major transgressive cycles in the Early to Late Miocene. The transgressive deposit s consist of elongate sand-bars and broad sand-sheets that pass headward into mixedflats of tidal environments. Marine floodin g in transgressive deposits is associated with coquina beds and allochthonous coralbearing sandy limestone bands. Major marine regressions are associated with lowstand progradation of thick estuary point-bars passing up into upper sand-flat sand bodies encased within the tidal flat sequences and lower shoreface deposits with local unconformities. The succession initially formed in a large scale incised-valley system, and was later interrupted by two major marine transgressions in the generally regressive or basinward-stepping stratigraphic sequences. Successive sandbo dies were formed during a sea-level low stand and early stage of the subsequent relative rise of sea level in a tide-d ominated estu ary system in the eastern part of the Central Myanmar Tertiary Basin during Early to Late Miocene times. © 1999 Elsevier Science Ltd . All rights reserved. |
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Identifier | http://uyr.uy.edu.mm/handle/123456789/190 | |||||
Journal articles | ||||||
Journal of Asian Earth Sciences | ||||||
17 | ||||||
Conference papaers | ||||||
Books/reports/chapters | ||||||
Thesis/dissertations |