1 Dinosaur Eggs in Yiwu City, Zhejiang Province In February 2017, dinosaur egg fossils were discovered in China Town part of Yiwu City, Zhejiang Province. They were confirmed by dinosaur experts from the Zhejiang Muse...1 Dinosaur Eggs in Yiwu City, Zhejiang Province In February 2017, dinosaur egg fossils were discovered in China Town part of Yiwu City, Zhejiang Province. They were confirmed by dinosaur experts from the Zhejiang Museum of Natural History to be those of Mesozoic herbivorous dinosaurs （Fig. 1）. Not long before, Yiwu Museum staff had discovered dinosaur eggs close by this place.展开更多
Objective The Yanshan Fold Belt is located within the northern margin of the North China platform and contains welldeveloped and widespread Neoproterozoic and Mesoproterozoic sedimentary units with a total thickness o...Objective The Yanshan Fold Belt is located within the northern margin of the North China platform and contains welldeveloped and widespread Neoproterozoic and Mesoproterozoic sedimentary units with a total thickness of up to 9000 m.Previous studies identified many oil seedlings as well as asphalt and ancient hydrocarbon reservoirs in Northern Hebei depression and western Liaoning depression.This research indicates that the Mesoproterozoic and Neoproterozoic sedimentary units are ideally suited for the formation of significant oil and gas resources.The Niu D1 well was drilled by the China Geological Survey(CGS)in the Niuyingzi area and intercepted oil immersions and oil-and gas-bearing units within a limestone reservoir in the middle Proterozoic Gaoyuzhuang Formation(Fig.1).This study presents new biomarker compound and carbon isotope data that indicate that the oil within this formation was derived from hydrocarbon source rocks of the Hongshuizhuang Formation,part of the Mesoproterozoic Jixian Series,and the reservoir type is overthrust fault fractured anticline hydrocarbon reservoir.The oil reservoir within the Gaoyuzhuang Formation limestone might represent the oldest oil reservoir discovered to date within the Yanliao faulted depression zone.展开更多
Hot Dry Rock （HDR） refers to those generally deeply buried impermeable metamorphic or crystallized biotite gneiss, granite and granodiorite rock bodies, with a burial depth greater than 2000 m, containing no water o...Hot Dry Rock （HDR） refers to those generally deeply buried impermeable metamorphic or crystallized biotite gneiss, granite and granodiorite rock bodies, with a burial depth greater than 2000 m, containing no water or vapor. HDR is as implied, hot and dry, with temperatures ranging from 150 to 650℃, and it can be utilized as a heat resource. Because this type of heat system does not require porosity, permeability and fluids and is widespread at the drillable depth range of 10 kin, it is thereby an infinite resource type. By contrast, thermal power generation results in copious pollution; wind power is irregular and unstable; solar energy occupies large areas.展开更多
The 2019 Annual Symposium on Yunyang Dinosaur Fossil Protection and Research was held in Chongqing on December 16,2019.It was proposed in the symposium that the dinosaurs discovered from the early Middle Jurassic Xint...The 2019 Annual Symposium on Yunyang Dinosaur Fossil Protection and Research was held in Chongqing on December 16,2019.It was proposed in the symposium that the dinosaurs discovered from the early Middle Jurassic Xintiangou Formation in Yunyang,Chongqing could represent a new dinosaur fauna.Previously,only a few dinosaurs have been reported from the Xintiangou Formation.Moreover,the Xintiangou dinosaurs are playing an important role in studying the evolutionary sequence of dinosaurs,and have the potential to fill the gaps during the Early-Middle dinosaur turnover.展开更多
During 2015, gold prospecting in Laizhou City of Shandong Peninsula in China has achieved a major breakthrough. Deposits containing 470 and 389 tons of gold metal were discovered in the northern sea area of Sanshandao...During 2015, gold prospecting in Laizhou City of Shandong Peninsula in China has achieved a major breakthrough. Deposits containing 470 and 389 tons of gold metal were discovered in the northern sea area of Sanshandao and the Shaling area, respectively. As a result, the gold prospective resources in the entire Jiaodong Peninsula have now exceeded 4000 tons, fully indicative of the super-large prospecting potential of the Jiaojia-type deposits.展开更多
1 Introduction Biological markers or biomarkers(Eglinton et al.,1964;Eglinton and Calvin,1967)are molecular fossils,which were derived from once living organisms through the earth history.They occur in sediments,rocks...1 Introduction Biological markers or biomarkers(Eglinton et al.,1964;Eglinton and Calvin,1967)are molecular fossils,which were derived from once living organisms through the earth history.They occur in sediments,rocks,and crude展开更多
Jiangxi Province, China＇s largest base tbr tungsten production and export is known as the world capital of tungsten. By the end of 2002, there were 72 primary tungsten deposits tbund, with accumulated reserves and a ...Jiangxi Province, China＇s largest base tbr tungsten production and export is known as the world capital of tungsten. By the end of 2002, there were 72 primary tungsten deposits tbund, with accumulated reserves and a proven resource of reserves of 1.9 Mt and 1.12 Mt, respectively, accounting for 20 percent of China＇s total reserves.展开更多
The technique of IP traceback may effectively block DOS (Denial Of Service) and meet the requirement of the computer forensic, but its accuracy depends upon that condition that each node in the Internet must support I...The technique of IP traceback may effectively block DOS (Denial Of Service) and meet the requirement of the computer forensic, but its accuracy depends upon that condition that each node in the Internet must support IP packet marking or detected agents. So far, this requirement is not satisfied. On the basis of traditional traceroute,this paper investigates the efficiency of discovering path methods from aspects of the size and order of detecting packets, and the length of paths.It points out that the size of padding in probed packets has a slight effect on discovering latency, and the latency with the method of bulk sending receiving is much smaller than one with the traditional traceroute. Moreover, the loss rate of packets with the technique of TTL (Time To Live) which increases monotonously is less than that with the technique of TTL which decreases monotonously. Lastly,OS (Operating System) passive fingerprint is used as heuristic to predict the length of the discovered path so as to reduce disturbance in network traffic.展开更多
Objective The Shiquanhe ophiolite is an important tectonic belt in western Tibet. It has been debated whether the Shiquanhe ophiolite represents an allochthonous nappe derived from the Bangong-Nujiang suture zone to t...Objective The Shiquanhe ophiolite is an important tectonic belt in western Tibet. It has been debated whether the Shiquanhe ophiolite represents an allochthonous nappe derived from the Bangong-Nujiang suture zone to the north or the展开更多
Objective Spherical micro-particles are often preserved in Precambrian sedimentary rocks. Finnish and Chinese scholars have previously discovered carbonaceous, siliceous or ferruginous spherules of out-space origin in...Objective Spherical micro-particles are often preserved in Precambrian sedimentary rocks. Finnish and Chinese scholars have previously discovered carbonaceous, siliceous or ferruginous spherules of out-space origin in the 1.6 Ga and 1.4 Ga sequence, respectively. The presence of spherules can record possible cosmic impact events. Also, cosmic spherules provide important information on the evolution of planets from outer space.展开更多
In June 2017, the Chongqing Municipal Govemment and Chinese scientists announced the discovery of a world -class dinosaur assemblage in Pu＇an, a town of Yunyang County, Chongqing. This group of skeletons was buried i...In June 2017, the Chongqing Municipal Govemment and Chinese scientists announced the discovery of a world -class dinosaur assemblage in Pu＇an, a town of Yunyang County, Chongqing. This group of skeletons was buried in the Jurassic Ziliujing Formation Da＇anzhai member and the lower and upper members of the Shaximiao Formation.展开更多
文摘1 Dinosaur Eggs in Yiwu City, Zhejiang Province In February 2017, dinosaur egg fossils were discovered in China Town part of Yiwu City, Zhejiang Province. They were confirmed by dinosaur experts from the Zhejiang Museum of Natural History to be those of Mesozoic herbivorous dinosaurs （Fig. 1）. Not long before, Yiwu Museum staff had discovered dinosaur eggs close by this place.
基金funded by the China Geological Survey Project(Grant No.DD20190098).
文摘Objective The Yanshan Fold Belt is located within the northern margin of the North China platform and contains welldeveloped and widespread Neoproterozoic and Mesoproterozoic sedimentary units with a total thickness of up to 9000 m.Previous studies identified many oil seedlings as well as asphalt and ancient hydrocarbon reservoirs in Northern Hebei depression and western Liaoning depression.This research indicates that the Mesoproterozoic and Neoproterozoic sedimentary units are ideally suited for the formation of significant oil and gas resources.The Niu D1 well was drilled by the China Geological Survey(CGS)in the Niuyingzi area and intercepted oil immersions and oil-and gas-bearing units within a limestone reservoir in the middle Proterozoic Gaoyuzhuang Formation(Fig.1).This study presents new biomarker compound and carbon isotope data that indicate that the oil within this formation was derived from hydrocarbon source rocks of the Hongshuizhuang Formation,part of the Mesoproterozoic Jixian Series,and the reservoir type is overthrust fault fractured anticline hydrocarbon reservoir.The oil reservoir within the Gaoyuzhuang Formation limestone might represent the oldest oil reservoir discovered to date within the Yanliao faulted depression zone.
文摘Hot Dry Rock （HDR） refers to those generally deeply buried impermeable metamorphic or crystallized biotite gneiss, granite and granodiorite rock bodies, with a burial depth greater than 2000 m, containing no water or vapor. HDR is as implied, hot and dry, with temperatures ranging from 150 to 650℃, and it can be utilized as a heat resource. Because this type of heat system does not require porosity, permeability and fluids and is widespread at the drillable depth range of 10 kin, it is thereby an infinite resource type. By contrast, thermal power generation results in copious pollution; wind power is irregular and unstable; solar energy occupies large areas.
基金granted by the Dinosaur Fossil Protection and Research in Pu’an Township,Yunyang County,Chongqing Program(KJ-2018035).
文摘The 2019 Annual Symposium on Yunyang Dinosaur Fossil Protection and Research was held in Chongqing on December 16,2019.It was proposed in the symposium that the dinosaurs discovered from the early Middle Jurassic Xintiangou Formation in Yunyang,Chongqing could represent a new dinosaur fauna.Previously,only a few dinosaurs have been reported from the Xintiangou Formation.Moreover,the Xintiangou dinosaurs are playing an important role in studying the evolutionary sequence of dinosaurs,and have the potential to fill the gaps during the Early-Middle dinosaur turnover.
文摘During 2015, gold prospecting in Laizhou City of Shandong Peninsula in China has achieved a major breakthrough. Deposits containing 470 and 389 tons of gold metal were discovered in the northern sea area of Sanshandao and the Shaling area, respectively. As a result, the gold prospective resources in the entire Jiaodong Peninsula have now exceeded 4000 tons, fully indicative of the super-large prospecting potential of the Jiaojia-type deposits.
基金funded by the National Natural Science Foundation of China (Grant No. 41172126)
文摘1 Introduction Biological markers or biomarkers(Eglinton et al.,1964;Eglinton and Calvin,1967)are molecular fossils,which were derived from once living organisms through the earth history.They occur in sediments,rocks,and crude
文摘Jiangxi Province, China＇s largest base tbr tungsten production and export is known as the world capital of tungsten. By the end of 2002, there were 72 primary tungsten deposits tbund, with accumulated reserves and a proven resource of reserves of 1.9 Mt and 1.12 Mt, respectively, accounting for 20 percent of China＇s total reserves.
文摘The technique of IP traceback may effectively block DOS (Denial Of Service) and meet the requirement of the computer forensic, but its accuracy depends upon that condition that each node in the Internet must support IP packet marking or detected agents. So far, this requirement is not satisfied. On the basis of traditional traceroute,this paper investigates the efficiency of discovering path methods from aspects of the size and order of detecting packets, and the length of paths.It points out that the size of padding in probed packets has a slight effect on discovering latency, and the latency with the method of bulk sending receiving is much smaller than one with the traditional traceroute. Moreover, the loss rate of packets with the technique of TTL (Time To Live) which increases monotonously is less than that with the technique of TTL which decreases monotonously. Lastly,OS (Operating System) passive fingerprint is used as heuristic to predict the length of the discovered path so as to reduce disturbance in network traffic.
基金financially supported by the National Natural Science Foundation (grants No. 41102065 and 41872110)the Sichuan Science and Technology Program (grant No. 2018JY0465)
文摘Objective The Shiquanhe ophiolite is an important tectonic belt in western Tibet. It has been debated whether the Shiquanhe ophiolite represents an allochthonous nappe derived from the Bangong-Nujiang suture zone to the north or the
基金co-supported by the National Natural Science Foundation of China(grant No.41472082)the National Key Research and Development Program of China (grant No.2016YFC0601001)+2 种基金the program of China Geological Survey(grant No.12120115068901)the National Stratigraphic committee of ChinaGlobal Geopark of Shennongjia(Shennongjia National Park)
文摘Objective Spherical micro-particles are often preserved in Precambrian sedimentary rocks. Finnish and Chinese scholars have previously discovered carbonaceous, siliceous or ferruginous spherules of out-space origin in the 1.6 Ga and 1.4 Ga sequence, respectively. The presence of spherules can record possible cosmic impact events. Also, cosmic spherules provide important information on the evolution of planets from outer space.
文摘In June 2017, the Chongqing Municipal Govemment and Chinese scientists announced the discovery of a world -class dinosaur assemblage in Pu＇an, a town of Yunyang County, Chongqing. This group of skeletons was buried in the Jurassic Ziliujing Formation Da＇anzhai member and the lower and upper members of the Shaximiao Formation.
