Sequence architecture, depositional system evolution and controlling factors in a lacustrine basin: a case study from Changdi Area, Bohai Bay Basin, Eastern China
نویسندگان
چکیده
Abstract The Paleogene Shahejie and Dongying formations of the eastern Bohai Bay Basin contain >500 m fluvial-deltaic deposits >600 deltaic-lacustrine deposits, both which are important for oil gas exploration. This study aims to figure out deposition system distribution within sequence stratigraphy predict exploration target. Sequence boundaries recognized by unconformities in seismic profiles abrupt changes well-logging curves (acoustic, spontaneous potential, natural gamma-ray resistivity), two second-order five third-order sequences (SQs1, SQs3 Formation SQd1-SQd3 Formation) identified. Four types depositional determined profiles, cores, relative sand content root-mean-square attributes. is predominantly fan deltas lacustrine SQs1 shallow SQd3 braided-river delta, semi-deep lacustrine, turbidite fan, SQd2 delta whereas SQd1 deposits. controlling factors basin subsidence simulation fossil data biological palynology, indicating that tectonic activity main factor while climate SQs1, sequences. Combined with physical properties sandstone, it concluded beach bar sequence, sequences, thick sandstone targets.
منابع مشابه
Depositional and structural evolution of a foreland basin margin in a magnetostratigraphic framework: the eastern Swiss Molasse Basin
M. Mange Department of Earth Sciences, University of Oxford, Parks Road, Oxford, OX1 3PR, England Abstract This integrated study of the sedimentology, magnetostratigraphic chronology and petrography of the mostly continental clastics of the Oligocene to Miocene Swiss Molasse Basin underpins a reconstruction of facies architecture and delineates relationships between the depositional evolution o...
متن کاملa study on construction of iranian life tables: the case study of modified brass logit system
چکیده ندارد.
15 صفحه اولApatite fission track age of Mesozoic sandstones from Beipiao basin, eastern China: Implications for basin provenance and tectonic evolution
The apatite fission track (FT) analysis of Jurassic sandstones from the Beipiao basin in the eastern China indicates a large variation in FT age peaks. The sandstone of the Beipiao Formation has two peak ages at 178.8 and 40.0 Ma, while the sandstone of the Tuchengzi Formation has three age peaks at 152.0, 77.5 and 32.5 Ma. This implies that the provenance of the Beipiao basin in the early Jura...
متن کاملDEPOSITIONAL HISTORY AND PALEOGEOGRAPHY OF THE LOWER PALEOCENE REDBEDS IN EASTERN KOPET-DAGH BASIN NORTHEASTERN IRAN
متن کامل
Ozona sandstone, Val Verde Basin, Texas: Synorogenic stratigraphy and depositional history in a Permian foredeep basin
H. Scott Hamlin is a research scientist associate at the Bureau of Economic Geology. He received his B.A. and M.A. degrees and his Ph.D. from the University of Texas at Austin. His research interests include depositional systems, stratigraphy, reservoir characterization, and hydrogeology. Ozona sandstone, Val Verde Basin, Texas: Synorogenic stratigraphy and depositional history in a Permian for...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Geophysics and Engineering
سال: 2023
ISSN: ['1742-2140', '1742-2132']
DOI: https://doi.org/10.1093/jge/gxad007