1998 Vol. 16, No. 3
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1998, 16(3): 1-5.
Abstract:
The trace fossil Tisoa Serres was unreported previously from China. Over 70 Tisoa specimens have been found in Middle Jurassic Sew a Formation in Qiang tang area, no rthern Tibet. The outcrop is located at 89°54′E in longitude and 32°07′N in latitude...
The trace fossil Tisoa Serres was unreported previously from China. Over 70 Tisoa specimens have been found in Middle Jurassic Sew a Formation in Qiang tang area, no rthern Tibet. The outcrop is located at 89°54′E in longitude and 32°07′N in latitude...
1998, 16(3): 14-19.
Abstract:
Time-series sediment trap experiments covering the periods from September 1987 to October 1988 in the northern South China Sea and from December 1990 to April 1995 in the central South China Sea were carried out in order to measure the fluxes and con...
Time-series sediment trap experiments covering the periods from September 1987 to October 1988 in the northern South China Sea and from December 1990 to April 1995 in the central South China Sea were carried out in order to measure the fluxes and con...
1998, 16(3): 25-30,37.
Abstract:
The paper mainly discusses the geochemical characteristics and types of the typical coal-typeg as pools of the Upper Paleo zoic, the tectonic environments and exploration prospects in China. North China coal-accumulating area is the most favourable a...
The paper mainly discusses the geochemical characteristics and types of the typical coal-typeg as pools of the Upper Paleo zoic, the tectonic environments and exploration prospects in China. North China coal-accumulating area is the most favourable a...
1998, 16(3): 44-51.
Abstract:
Based on the synthetic study of field outcrops and drilling section data, and using new stratigraphic division program, this paper proposes that the paleogeographic pattern of Ordos area was the compound sedimentary system of epiric sea carbonate pla...
Based on the synthetic study of field outcrops and drilling section data, and using new stratigraphic division program, this paper proposes that the paleogeographic pattern of Ordos area was the compound sedimentary system of epiric sea carbonate pla...
1998, 16(3): 58-65.
Abstract:
The northeastern Guizhou and the eastern Yunnan are located on the Upper Yangtze Platform. The present study on seven sections in the region has established nine 3rd order sequences from the Llan-dovery (439 Ma) to the Pridoli (409 Ma), with an avera...
The northeastern Guizhou and the eastern Yunnan are located on the Upper Yangtze Platform. The present study on seven sections in the region has established nine 3rd order sequences from the Llan-dovery (439 Ma) to the Pridoli (409 Ma), with an avera...
1998, 16(3): 72-74,79.
Abstract:
Cap rock is the necessary condition of the gas reservoir preservation, and hydrocarbon concentration confining is one important confining mechanism. The geological and mathematical model of natural gas diffusion has been set up system atically. The n...
Cap rock is the necessary condition of the gas reservoir preservation, and hydrocarbon concentration confining is one important confining mechanism. The geological and mathematical model of natural gas diffusion has been set up system atically. The n...
1998, 16(3): 80-84.
Abstract:
Principles of oil and gas formation fluid dynamic system analysis are briefly described. Fluid dynamic systems are classi fied into four types, including gravity-driven flow, compaction-driven flow, fluid com-partment and no-flowones. Oil and gas poo...
Principles of oil and gas formation fluid dynamic system analysis are briefly described. Fluid dynamic systems are classi fied into four types, including gravity-driven flow, compaction-driven flow, fluid com-partment and no-flowones. Oil and gas poo...
1998, 16(3): 92-96.
Abstract:
This paper reviewed some of the important results of the core rock section, cathodo luminescence and X-ray diffraction. The diagenesis in the Rong-37 block of the Lower Tertiary reservoir of are com-paction, cementation, dissolution and replacement. ...
This paper reviewed some of the important results of the core rock section, cathodo luminescence and X-ray diffraction. The diagenesis in the Rong-37 block of the Lower Tertiary reservoir of are com-paction, cementation, dissolution and replacement. ...
1998, 16(3): 102-108.
Abstract:
In Biyang fault-depressed lacustrine basin, the tectonic descent of basement presented antihinge-typed subsidence. Due to the joint effect of lacustrine level change and basement structural subsidence, accommodation change in the steep slope zone of ...
In Biyang fault-depressed lacustrine basin, the tectonic descent of basement presented antihinge-typed subsidence. Due to the joint effect of lacustrine level change and basement structural subsidence, accommodation change in the steep slope zone of ...
1998, 16(3): 115-118.
Abstract:
Palynofacies is a particular sedimentary organic matter association that can reflect sedimentation and lithogenesis environment. The palynofacies of carbonate rocks of Tertiary Hetaoyuan formation have been studied in detail. Based on the identificat...
Palynofacies is a particular sedimentary organic matter association that can reflect sedimentation and lithogenesis environment. The palynofacies of carbonate rocks of Tertiary Hetaoyuan formation have been studied in detail. Based on the identificat...
1998, 16(3): 124-131.
Abstract:
The uplifting of whole Yangtze platform occured by the end of Llandovery (Telychian), execpt sev-eral bays around the margin of the platform. The Ningqiang Formation consists of more than 2000 m shales and limestones with faunas form upper griestonie...
The uplifting of whole Yangtze platform occured by the end of Llandovery (Telychian), execpt sev-eral bays around the margin of the platform. The Ningqiang Formation consists of more than 2000 m shales and limestones with faunas form upper griestonie...
1998, 16(3): 137-140.
Abstract:
Sedimentary environments of Tertiary saline lake and clastic depositional system in Luntai fracture-uplift of Tabei uplift, Tarim basin are studied in detail. In the study area, the depositional patterns were dominated by a rid and semi-arid climate....
Sedimentary environments of Tertiary saline lake and clastic depositional system in Luntai fracture-uplift of Tabei uplift, Tarim basin are studied in detail. In the study area, the depositional patterns were dominated by a rid and semi-arid climate....
1998, 16(3): 147-152.
Abstract:
On the basis of detailed investigation of large quantity of geology sections, the geological event srecorded in the continental Jurassic strata in Northwest China have been systematically studied in this paper. The index bed of the subdivsion and cor...
On the basis of detailed investigation of large quantity of geology sections, the geological event srecorded in the continental Jurassic strata in Northwest China have been systematically studied in this paper. The index bed of the subdivsion and cor...
1998, 16(3): 156-160.
Abstract:
When sedimentary environment of corresponding rocks are determined by well logging data, there is of ten a puzzle about their environmental sense because all log-curves are not typical and full of geological information concerning sedimentary envionm...
When sedimentary environment of corresponding rocks are determined by well logging data, there is of ten a puzzle about their environmental sense because all log-curves are not typical and full of geological information concerning sedimentary envionm...
1998, 16(3): 6-13.
Abstract:
The Early Cretaceous Giabulin Formation, which is distributed along the north margin of the Yarlung Zang bo ophiolite suite, is easy to distinguish in the field. It is characterized by a sequence of ter-rigenous clasticrocks, principally mottled sand...
The Early Cretaceous Giabulin Formation, which is distributed along the north margin of the Yarlung Zang bo ophiolite suite, is easy to distinguish in the field. It is characterized by a sequence of ter-rigenous clasticrocks, principally mottled sand...
1998, 16(3): 20-24.
Abstract:
Halimeda, a genus of calcified green alga (Chlorophyta) of warm seas, is an important producer of carbonate sediment on coral reef areas of Nansha Islands, South China Sea. This study analysed the modern sedimentary characteristic of Halimeda in 52 c...
Halimeda, a genus of calcified green alga (Chlorophyta) of warm seas, is an important producer of carbonate sediment on coral reef areas of Nansha Islands, South China Sea. This study analysed the modern sedimentary characteristic of Halimeda in 52 c...
1998, 16(3): 38-43,51.
Abstract:
Channel bars are of ten observed in the Yellow River Delta and the Sheng LiⅠChannel Bar, which islocated to the morth of the Sheng Li Bridge, is a typical one among them. It is 1 200 meters long and may get 120 meters wide at its broadest part. The s...
Channel bars are of ten observed in the Yellow River Delta and the Sheng LiⅠChannel Bar, which islocated to the morth of the Sheng Li Bridge, is a typical one among them. It is 1 200 meters long and may get 120 meters wide at its broadest part. The s...
1998, 16(3): 52-57,65.
Abstract:
The carbon isotope shifts during Upper Permian in the South China drop gradually, and such phe-nomena may correspond to sea level change. There are two 3rd order cycle of carbon isotope stratigraphy of Late Permian. The early one is included in the l...
The carbon isotope shifts during Upper Permian in the South China drop gradually, and such phe-nomena may correspond to sea level change. There are two 3rd order cycle of carbon isotope stratigraphy of Late Permian. The early one is included in the l...
1998, 16(3): 66-71.
Abstract:
Seven types high frequency cyclic sequences which have been distinguished in the Upper Cretaceous-Eogene marine carbonate of the southwest Tarim Basin are mainly as follows: undertidal carbonate ramp, platform, platform margin earbonate cyclic sequen...
Seven types high frequency cyclic sequences which have been distinguished in the Upper Cretaceous-Eogene marine carbonate of the southwest Tarim Basin are mainly as follows: undertidal carbonate ramp, platform, platform margin earbonate cyclic sequen...
1998, 16(3): 75-79.
Abstract:
According to the distribution of the carbon isotopic composition data of over 140 gas samples in dif-ferent places and different beds in Ordos basin, natural gas in the Ordovician weathering crust is more close to the Carbo niferous-Permian coal-type...
According to the distribution of the carbon isotopic composition data of over 140 gas samples in dif-ferent places and different beds in Ordos basin, natural gas in the Ordovician weathering crust is more close to the Carbo niferous-Permian coal-type...
1998, 16(3): 85-91.
Abstract:
Results of research on the petrological, petrochemical, rare elements′and trace elements′character-istics of the volcanic event layers in Mid-Taiyuan Formation from middle region of Shanxi and western region of Hebei are presented. Petro-geochemical ...
Results of research on the petrological, petrochemical, rare elements′and trace elements′character-istics of the volcanic event layers in Mid-Taiyuan Formation from middle region of Shanxi and western region of Hebei are presented. Petro-geochemical ...
1998, 16(3): 97-101.
Abstract:
Carboni ferous quartz sandstone distributed in the Southwest Depression of the Tarim basin is a set of widespread clastic deposit. During diagenesis, two important secondary structure units were formed in Southwest depression, i. e., Bachu uplift and...
Carboni ferous quartz sandstone distributed in the Southwest Depression of the Tarim basin is a set of widespread clastic deposit. During diagenesis, two important secondary structure units were formed in Southwest depression, i. e., Bachu uplift and...
1998, 16(3): 109-114.
Abstract:
The stable carbon and oxygen isotopic compositions of lacustrine carbonates can yield useful pale-oenvironmental information. The lacustrine carbonates mainly distribute in the first member (Es1) and the 4th member (Es4) of the Shahejie Formation in ...
The stable carbon and oxygen isotopic compositions of lacustrine carbonates can yield useful pale-oenvironmental information. The lacustrine carbonates mainly distribute in the first member (Es1) and the 4th member (Es4) of the Shahejie Formation in ...
1998, 16(3): 119-123,131.
Abstract:
Saline lakes of Cenozoic are extensively developed in China. There are unique sedimentary environ-ment and condition of hydrocarbon generation in these saline lakes. The geochemical charactristics of source rocks and hydrocarbons generated rom saline...
Saline lakes of Cenozoic are extensively developed in China. There are unique sedimentary environ-ment and condition of hydrocarbon generation in these saline lakes. The geochemical charactristics of source rocks and hydrocarbons generated rom saline...
1998, 16(3): 132-136.
Abstract:
According to structure features, the Changxing reefs are classified as mature, semimature and imma-ture reefs. The mature reefs have the characteristics of large scale, complex shape, complete structure, lots of hermatrypic organisms and shallowing s...
According to structure features, the Changxing reefs are classified as mature, semimature and imma-ture reefs. The mature reefs have the characteristics of large scale, complex shape, complete structure, lots of hermatrypic organisms and shallowing s...
1998, 16(3): 141-146.
Abstract:
According to the analysis of micro-characteristics and depositional environment of the main exploit-ed coals, and using the triangular diagram (In the diagram, the significance to indicate coal facies of the minerals in coal, especially authig enicon...
According to the analysis of micro-characteristics and depositional environment of the main exploit-ed coals, and using the triangular diagram (In the diagram, the significance to indicate coal facies of the minerals in coal, especially authig enicon...
1998, 16(3): 153-155,160.
Abstract:
Immature organic matter(peat) were pyrolysized at temperatures ranging from 200℃ to 400℃ under high pressure ranging from 0.1 to 2 GPa in a closed system. As the index of maturation, vitrinite reflectance (Ro) of samples was measured. The results dis...
Immature organic matter(peat) were pyrolysized at temperatures ranging from 200℃ to 400℃ under high pressure ranging from 0.1 to 2 GPa in a closed system. As the index of maturation, vitrinite reflectance (Ro) of samples was measured. The results dis...
