2000 Vol. 18, No. 1
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Display Method:
2000, 18(1): 1-6.
Abstract:
The formation of channel patterns and its characteristics are important aspects in modern and ancient fluvial system studies, and thus become the main concern for hydraulic engineers, geomorphologists and sedimentologists. So far, there are still som...
The formation of channel patterns and its characteristics are important aspects in modern and ancient fluvial system studies, and thus become the main concern for hydraulic engineers, geomorphologists and sedimentologists. So far, there are still som...
2000, 18(1): 13-17.
Abstract:
Organic carbon content in lake sediment is often used to indicate the lake paleoprimary productivity.The main sources of organic carbon include autochthonous lake organism and allochthonous terrestrial plant,and there is complex degradation after dep...
Organic carbon content in lake sediment is often used to indicate the lake paleoprimary productivity.The main sources of organic carbon include autochthonous lake organism and allochthonous terrestrial plant,and there is complex degradation after dep...
2000, 18(1): 22-28.
Abstract:
The sediments that accumulate in an estuarine environment recorded the information about the history of changes in the source of the material, the rate of deposition and the influence of man. Man's influences on Victoria Harbour are significant. To c...
The sediments that accumulate in an estuarine environment recorded the information about the history of changes in the source of the material, the rate of deposition and the influence of man. Man's influences on Victoria Harbour are significant. To c...
2000, 18(1): 36-42.
Abstract:
The Quaternary eolian deposits in Lanzhou,west of the Loess Plateau,is the thickest area in China as aresult of the geographic position and the topographic conditions.Investigation show that Lanzhou is also a dust-storm frequent area in the present t...
The Quaternary eolian deposits in Lanzhou,west of the Loess Plateau,is the thickest area in China as aresult of the geographic position and the topographic conditions.Investigation show that Lanzhou is also a dust-storm frequent area in the present t...
2000, 18(1): 50-56.
Abstract:
According to the data of rock cores, well loggings and seismic interpretations, three order base-level cycles are recognized from Penglaizhen Formation in Xinchang area, which consist of 45-47 short-term base-level cycles, 5 mid-term base-level cycle...
According to the data of rock cores, well loggings and seismic interpretations, three order base-level cycles are recognized from Penglaizhen Formation in Xinchang area, which consist of 45-47 short-term base-level cycles, 5 mid-term base-level cycle...
2000, 18(1): 63-67.
Abstract:
It is well known that integrated use of outcrop, well-logging and seismic data is the key to sequence stratigraphy. Therefore, how to identify the sequence boundary by well-logging in the lacustrine sediments which are lack in the unconformity is cri...
It is well known that integrated use of outcrop, well-logging and seismic data is the key to sequence stratigraphy. Therefore, how to identify the sequence boundary by well-logging in the lacustrine sediments which are lack in the unconformity is cri...
2000, 18(1): 73-79.
Abstract:
The study area,Jinmuda,Rangtang county, Sichuan province is located in the southeast of Aba Mass. During the early period of Late Triassic, deep water detrital sediments, which can be divided into Zhuwo Formation and Xinduqiao Formation, deposited in...
The study area,Jinmuda,Rangtang county, Sichuan province is located in the southeast of Aba Mass. During the early period of Late Triassic, deep water detrital sediments, which can be divided into Zhuwo Formation and Xinduqiao Formation, deposited in...
2000, 18(1): 89-94.
Abstract:
The Honggucheng Formation lies in the Upper Lower Cretaceous in the Minghe basin, which is like multistory type and cyclic sequences resulting from multiple flood processing deposition. It is characterized by the interchange of structure underwater a...
The Honggucheng Formation lies in the Upper Lower Cretaceous in the Minghe basin, which is like multistory type and cyclic sequences resulting from multiple flood processing deposition. It is characterized by the interchange of structure underwater a...
2000, 18(1): 100-106.
Abstract:
The Carboniferous strata outcropped in Maanqiao and northern Baluntai area in Middle Tianshan include Maanqiao Formation (late Datang stage) and Sangshuyuan Formation (Weining stage).The strata belong to the mixed sediments of carbonate and clastic r...
The Carboniferous strata outcropped in Maanqiao and northern Baluntai area in Middle Tianshan include Maanqiao Formation (late Datang stage) and Sangshuyuan Formation (Weining stage).The strata belong to the mixed sediments of carbonate and clastic r...
2000, 18(1): 119-126.
Abstract:
The timing and duration of quartz cementation in sandstones have been mainly inferred from diagenetic texture, relationship between pore filling minerals, fluid inclusions and isotopic data. Fluid inclusion temperatures from North Sea reservoir sands...
The timing and duration of quartz cementation in sandstones have been mainly inferred from diagenetic texture, relationship between pore filling minerals, fluid inclusions and isotopic data. Fluid inclusion temperatures from North Sea reservoir sands...
2000, 18(1): 133-138.
Abstract:
The geochemical characters of 13 Jurassic source rock samples in the eastern Qaidam basin are studied by means of Rock-Eval, GC-MS, GC-MS-MAT and so on Based on the comprehensive analyses of the organic carbon content, the content and conversion rati...
The geochemical characters of 13 Jurassic source rock samples in the eastern Qaidam basin are studied by means of Rock-Eval, GC-MS, GC-MS-MAT and so on Based on the comprehensive analyses of the organic carbon content, the content and conversion rati...
2000, 18(1): 146-150.
Abstract:
The indigenous characteristcs of organic matter in carbonate hydrocarbon source rock directly influences the precise evaluation of its hydrocarbon generation capability especially on marine carbonate rock with low organic matter abundance and high th...
The indigenous characteristcs of organic matter in carbonate hydrocarbon source rock directly influences the precise evaluation of its hydrocarbon generation capability especially on marine carbonate rock with low organic matter abundance and high th...
2000, 18(1): 157-161.
Abstract:
Based on the study of factors influencing the dissolution ability of gas in formation water, this paper analyses the geological conditions for gas to release from water,and points out that the decrease of temperature and pressure, increase of mineral...
Based on the study of factors influencing the dissolution ability of gas in formation water, this paper analyses the geological conditions for gas to release from water,and points out that the decrease of temperature and pressure, increase of mineral...
2000, 18(1): 7-12.
Abstract:
On the delta during Yellow River in zero,there developed a great number of slump structures,which might be formed near the edge of point bar and channel bar or in the channel developed whithin the point bar or channel bar,as well as in the river cour...
On the delta during Yellow River in zero,there developed a great number of slump structures,which might be formed near the edge of point bar and channel bar or in the channel developed whithin the point bar or channel bar,as well as in the river cour...
2000, 18(1): 18-21.
Abstract:
The stufy of loess-paleosol sequence reveals the magnetic susceptibility is of indexical significance in identifying loess-paleosol and their progression in the loess section,but also in simulating the changes of paleoenvironment.The magnetic suscept...
The stufy of loess-paleosol sequence reveals the magnetic susceptibility is of indexical significance in identifying loess-paleosol and their progression in the loess section,but also in simulating the changes of paleoenvironment.The magnetic suscept...
2000, 18(1): 29-35.
Abstract:
In the research of many geological problems about weathered eluvial zone, the conten theory is widely adpoted, which is based on content of chemical composition. Although the content is very important to resolve lots of geological problems, this theo...
In the research of many geological problems about weathered eluvial zone, the conten theory is widely adpoted, which is based on content of chemical composition. Although the content is very important to resolve lots of geological problems, this theo...
2000, 18(1): 43-49.
Abstract:
Different types of meter-scale cyclic sequences in stratigraphical records are the outcomes of episodic accumulation of strata related to Milankovitch cycles. They are marked by particular features of facies-successions resulted from different sedime...
Different types of meter-scale cyclic sequences in stratigraphical records are the outcomes of episodic accumulation of strata related to Milankovitch cycles. They are marked by particular features of facies-successions resulted from different sedime...
2000, 18(1): 57-62.
Abstract:
A sedimentary organic facies is defined as a stratigraphic unit, in which there are the similar characteristics of depositional environment, biological assemblage, diagenetic environment, reduction-oxidation condition, and the genetic type of organic...
A sedimentary organic facies is defined as a stratigraphic unit, in which there are the similar characteristics of depositional environment, biological assemblage, diagenetic environment, reduction-oxidation condition, and the genetic type of organic...
2000, 18(1): 68-72.
Abstract:
The Qilang Formation of Middle Ordovician in northwest Tarim basin is composed of laminae marl and laminae limestone with abundance graptolites and trilobites.This kind of marl and limestone thin alternation is typical L-M (limestone-marl) cycle.Ther...
The Qilang Formation of Middle Ordovician in northwest Tarim basin is composed of laminae marl and laminae limestone with abundance graptolites and trilobites.This kind of marl and limestone thin alternation is typical L-M (limestone-marl) cycle.Ther...
2000, 18(1): 80-88.
Abstract:
One hundred sixty-three species of fossil spores and pollen referred to 83 genera extracted from 44 crude oil samples collected from the Tarim Basin were recorded. Based on the investigations of the characteristics of the petroleum sporo-pollen assem...
One hundred sixty-three species of fossil spores and pollen referred to 83 genera extracted from 44 crude oil samples collected from the Tarim Basin were recorded. Based on the investigations of the characteristics of the petroleum sporo-pollen assem...
2000, 18(1): 95-99.
Abstract:
Fan-shaped depositional bodies are those mainly composed of terrigenous coarse deposits and fan-shaped in morphology, including alluvial fan, fan delta, delta and subaqueous fan and so on. They are important exoil-gas targets in oil and gas-bearing b...
Fan-shaped depositional bodies are those mainly composed of terrigenous coarse deposits and fan-shaped in morphology, including alluvial fan, fan delta, delta and subaqueous fan and so on. They are important exoil-gas targets in oil and gas-bearing b...
2000, 18(1): 114-118.
Abstract:
There were cyclothems consisted of evaporite rocks,deep color mudstones or shales and deep water turbidity sediments of Peleogene Sha-4 member in Dongying sag,which was salt lake sedimentary assemblage with more than 1000m in thickness.The evaporite ...
There were cyclothems consisted of evaporite rocks,deep color mudstones or shales and deep water turbidity sediments of Peleogene Sha-4 member in Dongying sag,which was salt lake sedimentary assemblage with more than 1000m in thickness.The evaporite ...
2000, 18(1): 127-132.
Abstract:
Based on the analysis of compression pore evolution, fracture, mineral component and the study of effect of diagenesis stages on reservoirs, the physical base of effects of diagenesis stages on reservoirs is discussed by applying well logging informa...
Based on the analysis of compression pore evolution, fracture, mineral component and the study of effect of diagenesis stages on reservoirs, the physical base of effects of diagenesis stages on reservoirs is discussed by applying well logging informa...
2000, 18(1): 139-145.
Abstract:
The physical and chemical nature of petroleum changes with source rock and maturity,although the feature of oil and gas can also be influenced by local biodegadration or water washing.During the process of reservoir filling,some polar compound in cru...
The physical and chemical nature of petroleum changes with source rock and maturity,although the feature of oil and gas can also be influenced by local biodegadration or water washing.During the process of reservoir filling,some polar compound in cru...
2000, 18(1): 151-156.
Abstract:
Because both migration and accumulation of oil and gas proceeded within the pore space of reservoir,the porosity structures directly have an effect on the accumulation of oil and gas as well as the formation and distribution of oil and gas reservoirs...
Because both migration and accumulation of oil and gas proceeded within the pore space of reservoir,the porosity structures directly have an effect on the accumulation of oil and gas as well as the formation and distribution of oil and gas reservoirs...
2000, 18(1): 162-164.
Abstract:
Cave calcium has turned out to be a very important data-bank of paleoclimatic evolution.Stalagmite,flow stone and calcite veins in caves,like tree rings,ice cores,loess and lacustrine deposits,contain precise records of past environmental variation.D...
Cave calcium has turned out to be a very important data-bank of paleoclimatic evolution.Stalagmite,flow stone and calcite veins in caves,like tree rings,ice cores,loess and lacustrine deposits,contain precise records of past environmental variation.D...
