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Coexistence of Hyperpycnites, Debrites and Turbidites and Their Geological Significances of Unconventional Petroleum
Author(s) -
YANG Renchao,
JIN Zhijun,
SUN Dongsheng,
HAN Zuozhen,
FAN Aiping
Publication year - 2015
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/1755-6724.12302_49
Subject(s) - turbidite , geology , petroleum , petroleum exploration , geochemistry , petroleum engineering , sedimentary rock , paleontology
The genesis of deep water sandstone has become the focus both of sedimentology research and petroleum industry (Etienne et al., 2012), however, people still know little about these deep water sediments flows and depositional mechanisms (Talling et a.,2012). Most of the deep water sandbodies were interpreted as turbidites in the past decades, until new theory of sandy debris flow challenged the classic theory of turbidity current (Shanmugam, 1996). What is more, new understanding of hyperpycnal flow fulfilled the theory of turbidity current (Mulder et al., 1995). Although arguments still exist among sedimentologists on origination of some deep water sandstone, relationships among sandy debris flows, turbidity currents and hyperpycnal flows were unanimously agreed to be the key scientific issue of deep water gravity flows and deep water sedimentology. Complex transformations and inductions not only exist among sandy debris flows, turbidity currents and hyperpycnal flows, but also hyperpycnites, debrites and turbidites co-occurs and co-exist in time and space usually. The variability and complexity of geological conditions in long geohistory determine the existence of multiple explanations of the same deposition products among sedimentologists.