The biogenic gas potential of the submarine canyon systems of Plio-Peistocene foreland Basin, southwestern Taiwan

The Central Submarine Canyon in the Qiongdongnan Basin, northwestern South China Sea: Architecture, sequence stratigraphy, and depositional processes

“…Major submarine canyons also hold critical sedimentological and climatic information from their neighboring regions and, thus, have long been of interest sedimentologists and paleo-climatologists (Bouma, 2001;Gingele et al, 2004). From a hydrocarbon reservoir perspective, significant amounts of sandy sediments can accumulate in such canyons, forming important hydrocarbon reservoirs in many slope and basin-floor settings (Clark and Pickering, 1996;Fuh et al, 2009;Crossey et al, 2006).…”

Geological features, controlling factors and potential prospects of the gas hydrate occurrence in the east part of the Pearl River Mouth Basin, South China Sea

“…Faults, gas chimneys, and diapiric structures have been identified from the seismic data in this area (Fuh et al, 2009;Gong et al, 2008;Yan et al, 2006;Wang et al, 2006;Wang et al, 2009;Wu et al, 2007). Various types of complex morphological structures are found such as large slopes, canyons and trenches in the water depth of 300 -2000 m. The submarine plateaus located on the flanks of trenches are generally considered to be the desirable place for the occurrence of gas hydrates.…”

“…The shallow soft soils derived from quaternary are considered to be in an environment of high pressure and low extension caused by the tectonic activities of underlain NW trending buried faults. In Luzon which is located to the east of drilling area, the welldeveloped accretionary prisms lead to a series of thrust faults and westward-dipping imbricated folds (Lin et al, 2009;Liu et al 1997). During R/V SONNE 177 cruise co-operated by Chinese and German scientific team in 2007, widely distributed cold vents and carbonate crust cracks called Jiulong Methane Reef (JMR) were found in the northern shallow water area (Suess et al, 2005;Han et al, 2008), also revealing the possible presence of gas hydrate.…”

Tectonic Implications of Stratigraphy Architecture in Distal Part of Foreland Basin, Southwestern Taiwan

“…The largest scale of down-cutting morphology is the boundary at the base of the stratal units of NN19. The morphology of each submarine canyon has been studied and reconstructed in detail by Fuh et al [99,100] using a dense grid of seismic sections with some well bore data in the area between wells Q and R. The reconstructed morphology of submarine canyons shows that the regional trends of the axis of submarine canyons are parallel with that of the mountain-building belt, implying that the formation of the unconformities is related to the orogeny. Their studies also show that the submarine canyons gradually developed southward, consistent with the general trend of southward propagation of the mountain-building belt, but bounced back to the north relative to the preceding one when the most prominent canyon was developing at the base of NN19 [99].…”