Objective The North China Craton(NCC)is characterized by widespread tectono-thermal events at ca.2.5 Ga,which differs from many other older cratons on Earth,which usually record tectono-thermal events at-2.7 Ga.Ther...Objective The North China Craton(NCC)is characterized by widespread tectono-thermal events at ca.2.5 Ga,which differs from many other older cratons on Earth,which usually record tectono-thermal events at-2.7 Ga.Therefore,the search for early crustal material,especially rocks within the NCC that record the 2.7 Ga event,展开更多
Objective The Juhugeng mining area in Qinghai Province of northwest China has attracted wide attention among geologists for it hosts typical coal measure gases.The shale gas reservoirs were reformed by intensive struc...Objective The Juhugeng mining area in Qinghai Province of northwest China has attracted wide attention among geologists for it hosts typical coal measure gases.The shale gas reservoirs were reformed by intensive structural movements during geological periods,展开更多
Objective Understanding the dynamics of sediment gravity flows is of great importance to correctly interpret their related deposits. The discovery of supercritical sediment gravity flows provides some new viewpoints ...Objective Understanding the dynamics of sediment gravity flows is of great importance to correctly interpret their related deposits. The discovery of supercritical sediment gravity flows provides some new viewpoints for the explanation of controversial sediment gravity flow deposits. However, the dynamics, formation, evolution processes of supercritical sediment gravity flows and their recognition criteria from their associated deposits are still worldwide controversial. The supercritical hyperpycnal flow deposits recognized in the upper part of Early Cretaceous Lingshandao Formation provide a rare opporttmity to understand their sedimentary characteristics. This work is aimed at documenting the typical sedimentary structures associated with the supercritical hyperpycnal flow, and discussing the vertical stacking and its relationship with flow evolution.展开更多
Objective The North China Craton,bounded by the Paleozoic Central Asian Orogenic Belt on the north and by the Qinling–Dabie–Su–Lu Orogenic Belt on the south,is one of the oldest continental nuclei on Earth as a con...Objective The North China Craton,bounded by the Paleozoic Central Asian Orogenic Belt on the north and by the Qinling–Dabie–Su–Lu Orogenic Belt on the south,is one of the oldest continental nuclei on Earth as a consequence of its preservation of some of the oldest rock records ranging up to ca.3.85 Ga and mineral older than 4.0 Ga(Li et al.,2016,2017).展开更多
Dongsha waters are poorly studied for gas hydrates. Previous multi-channel seismic reflection and Chirp sub- bottom profiles show that numerous submarine mounds stand up to 100 m high above the seafloor over the conti...Dongsha waters are poorly studied for gas hydrates. Previous multi-channel seismic reflection and Chirp sub- bottom profiles show that numerous submarine mounds stand up to 100 m high above the seafloor over the continental slope of the SW Dongsha Island in northern margin of the South China Sea (SCS). These mounds are characterized by hardened seabed, seafloor gas venting and folded structures, which implies the existence of active mud volcanoes. This work aims to confirm this speculation by seafloor sample dredging and to explore the potential of gas hydrates.展开更多
Dr. Shangping Xie (EPRC, Hawaii University, USA), Dr. W. Timothy Liu (J.P.L. California Institute of Technology, USA), Professor Qinyu Liu (Ocean U-niversity of Qingdao, China) and Masami Nonaka (IPRC, Hawaii Universi...Dr. Shangping Xie (EPRC, Hawaii University, USA), Dr. W. Timothy Liu (J.P.L. California Institute of Technology, USA), Professor Qinyu Liu (Ocean U-niversity of Qingdao, China) and Masami Nonaka (IPRC, Hawaii University, USA) discovered a phe-展开更多
An auriferous ore deposit of industrial scale was discovered by the authors in carbon-aceous rock series or the Jiao-Lai Basin on the North China Platform. The carbonaceousrock series is developed at the bottom of the...An auriferous ore deposit of industrial scale was discovered by the authors in carbon-aceous rock series or the Jiao-Lai Basin on the North China Platform. The carbonaceousrock series is developed at the bottom of the Cretaceous Laiyang Group which is over 270mthick, and overlies unconformably the Archaean-Proterozoic metamorphic rocks. The展开更多
基金supported by the National Science Foundation of China(grants No.41572169 and41202136)China Geological Survey(grant No.12120114021601)the Outlay Research Fund of the Institute of Geology,CAGS(grants No.J1507 and J1301)
文摘Objective The North China Craton(NCC)is characterized by widespread tectono-thermal events at ca.2.5 Ga,which differs from many other older cratons on Earth,which usually record tectono-thermal events at-2.7 Ga.Therefore,the search for early crustal material,especially rocks within the NCC that record the 2.7 Ga event,
基金supported by the National Natural Science Foundation of China(grant No.41572141)
文摘Objective The Juhugeng mining area in Qinghai Province of northwest China has attracted wide attention among geologists for it hosts typical coal measure gases.The shale gas reservoirs were reformed by intensive structural movements during geological periods,
基金the National Science Foundation of China (grant No.U1262203)the National Science and Technology Special Grant (grant No.2016ZX05006-007) for their financial support
文摘Objective Understanding the dynamics of sediment gravity flows is of great importance to correctly interpret their related deposits. The discovery of supercritical sediment gravity flows provides some new viewpoints for the explanation of controversial sediment gravity flow deposits. However, the dynamics, formation, evolution processes of supercritical sediment gravity flows and their recognition criteria from their associated deposits are still worldwide controversial. The supercritical hyperpycnal flow deposits recognized in the upper part of Early Cretaceous Lingshandao Formation provide a rare opporttmity to understand their sedimentary characteristics. This work is aimed at documenting the typical sedimentary structures associated with the supercritical hyperpycnal flow, and discussing the vertical stacking and its relationship with flow evolution.
基金financially supported by the National Science Foundation of China(grants No.41430207 and 90914001)
文摘Objective The North China Craton,bounded by the Paleozoic Central Asian Orogenic Belt on the north and by the Qinling–Dabie–Su–Lu Orogenic Belt on the south,is one of the oldest continental nuclei on Earth as a consequence of its preservation of some of the oldest rock records ranging up to ca.3.85 Ga and mineral older than 4.0 Ga(Li et al.,2016,2017).
基金financially supported by the National Natural Science Foundation of China(grants No.41376062,91328205,41206039)Project of the Tectonic Evolution of China Sea and its adjacent areas(grant No.GZH201100205)+1 种基金Public Science and Technology Research Funds Projects of Ocean(grant No.201405032)sponsored by NSFC and Special Fund for strategic pilot technology,CAS
文摘Dongsha waters are poorly studied for gas hydrates. Previous multi-channel seismic reflection and Chirp sub- bottom profiles show that numerous submarine mounds stand up to 100 m high above the seafloor over the continental slope of the SW Dongsha Island in northern margin of the South China Sea (SCS). These mounds are characterized by hardened seabed, seafloor gas venting and folded structures, which implies the existence of active mud volcanoes. This work aims to confirm this speculation by seafloor sample dredging and to explore the potential of gas hydrates.
文摘Dr. Shangping Xie (EPRC, Hawaii University, USA), Dr. W. Timothy Liu (J.P.L. California Institute of Technology, USA), Professor Qinyu Liu (Ocean U-niversity of Qingdao, China) and Masami Nonaka (IPRC, Hawaii University, USA) discovered a phe-
文摘An auriferous ore deposit of industrial scale was discovered by the authors in carbon-aceous rock series or the Jiao-Lai Basin on the North China Platform. The carbonaceousrock series is developed at the bottom of the Cretaceous Laiyang Group which is over 270mthick, and overlies unconformably the Archaean-Proterozoic metamorphic rocks. The