数据汇交资源 - 国家冰川冻土沙漠科学数据中心

Did high temperature rather than low O2 hinder the evolution of eukaryotes in the Precambrian

Did high temperature rather t... 2024-01-24

关键词:: Proterozoic eukaryote evolution; Boring billion; Habitable earth; Photosynthetic algae; Atmospheric oxygen; Oceanic temperature

The emergence and diversity of eukaryotes that occurred in the Proterozoic Eon (2.5–0.541 Ga) are the most important parts of life’s evolution on the Earth. ...

作者:: Fenglian Zhang,Huajian Wang,Yuntao Ye,Yuke Liu,Yitong Lyu,Yan Deng,Dan Lyu,Xiaomei Wang,Huaichun Wu,Shenghui Deng,Shuichang Zhang
文件大小:: 3.6 MiB

Comparison of the main factors controlling the Wufeng–Longmaxi formation shale gas contents between Changning and Fuling of the Sichuan Basin

Comparison of the main factor... 2024-01-24

关键词:: Changning and Fuling; Wufeng

Changning and Fuling are two of the best-known shale gas fields in China, located at two different depositional centers of the Upper Ordovician Wufeng Format...

作者:: Yijun Zheng
文件大小:: 5.5 MiB

Molecular Simulation of Resin and the Calculation of Molecular Bond Energy

Molecular Simulation of Resin... 2024-01-24

关键词:: amberResin

In this study, average structural characteristics of amber were researched and used as an example to establish the three-dimensional (3D) average structure o...

作者:: Liang Tian
文件大小:: 6.8 MiB

Assessment the gas potential of coal-bearing mudstones from upper paleozoic in ordos basin via gold-tube pyrolysis

Assessment the gas potential ... 2024-01-24

关键词:: Gas potentialCoal measure mudstonesCarbonaceous mudstoneDark mudstoneOrdos basinGold-tube pyrolysis

Previous natural gas explorations in Ordos Basin were conducted in areas with thick coal deposited. Recently, natural gas flow were discovered in southern ba...

作者:: Wang Qingtao
文件大小:: 10.8 MiB

Fluid Phase Simulation and Evolution of a Condensate Gas Reservoir in the Tazhong Uplift, Tarim Basin

Fluid Phase Simulation and Ev... 2024-01-24

关键词:: Fluid Phase; Condensate Gas; Tazhong Uplift

The fluid phase and the evolution of the condensate gas reservoir in the Lianglitage Formation (O3), Well ZG7-5, Tazhong Uplift, were studied by integrating ...

作者:: Rui Deng
文件大小:: 4.9 MiB

Can AFM be used to measure absolute values of Young's modulus of nanocomposite materials down to the nanoscale?

Can AFM be used to measure ab... 2024-01-24

关键词:: nanometerimpression

At present, a technique potentially capable of measuring values of the Young’s modulus at the nanoscale is atomic force microscopy (AFM) working in the inden...

作者:: Liu Yuke
文件大小:: 1.7 MiB

Chemical structure changes of solid bitumen during solvent swelling investigated by X-ray diffraction

Chemical structure changes of... 2024-01-24

关键词:: Solvent swellingX-ray diffractionSolid bitumenChemical structurE

In this study, swelling experiments for three natural solid bitumen samples in two types of organic solvents were conducted to explore the location of the sw...

作者:: Liang Tian
文件大小:: 17.7 MiB

Identification of a novel undecamethylhenicosane and three oxygenated precursors in a Maoming Basin shale, China

Identification of a novel und... 2024-01-24

关键词:: C32 botryococcane; C32 botryococcanalC31 botryococcano; lNMRBacterial degradation; Maoming Basin

Further to our recent identification of a C33 botryococcane, a C33 botryococcan-24-one and two C31 botryococcanes (2,3,6,7,10,12,15,16,19,20-decamethylhenico...

作者:: Liao Jing
文件大小:: 4.1 MiB

Resin composition: An indicator of oil maturity as revealed by fourier transform ion cyclotron resonance mass spectrometry

Resin composition: An indicat... 2024-01-24

关键词:: Resin; Pyrolysis; FT-ICR MS; Heteroatom compound; Maturity; DBE

A pyrolysis experiment was carried out on a Dongying Depression kerogen 8 sample to separate the resin from the oil. Fourier transform ion cyclotron resonanc...

作者:: Liang Tian
文件大小:: 10.1 MiB

A comprehensive re-understanding of the OM-hosted nanopores in the marine Wufeng–Longmaxi shale formation in South China by organic petrology, gas adsorption, and X-ray diffraction studies

A comprehensive re-understand... 2024-01-24

关键词:: Wufeng–Longmaxi shaleOM-hosted nanoporesSEM imagingMethane adsorptionN2–CO2 adsorptionX-ray diffraction

The overmature marine Ordovician–Silurian Wufeng–Longmaxi (WF–LMX) formation shale is the most im- portant exploration target for shale gas in South China. I...

作者:: Yang Chao
文件大小:: 17.4 MiB

纳米压痕技术在页岩力学性质表征中的应用进展

纳米压痕技术在页岩力学性质表征中的应用进展 2024-01-24

关键词:: 试验制度; 微观力学性能; 蠕变特征; 流体/页岩相互作用; 纳米压痕技术; 储层压裂; 页岩

近年来，随着力学测试技术的不断发展，微观材料科学研究中广泛应用的纳米压痕技术被引入到页岩研究领域，成为测试页岩表面微观力学性质的重要手段。从微观视角去研究页岩的力学性能已成为当下的研究热点之一。为此，梳理了页岩样品的制备方法和压痕试验制度对测试结果的影响，详细论述了纳米压痕技术在页岩中微观力学和蠕变性能表征方...

作者:: 王建丰
文件大小:: 1.5 MiB

Interaction between Organic Solvents and Three Types of Kerogen Investigated via X-ray Diffraction

Interaction between Organic S... 2024-01-24

关键词:: X‑ray Diffractionsorb; hydrocarbonvia; X-ray diffraction (XRD)

In this work, for the first time, a new swelling method was applied to study the chemical structure of kerogen. Structural changes during the swelling proces...

作者:: Liang Tian
文件大小:: 5.2 MiB

Multi-Element Imaging of a 1.4 Ga Authigenic Siderite Crystal1.4 Ga

Multi-Element Imaging of a 1.... 2024-01-24

关键词:: siderite; iron; crystallization; multi-element imaging; LA-ICP-MS; Mesoproterozoic; Xiamaling Formation; dissimilatory iron reduction

Iron formations (IFs) are traditionally considered to be limited during 1.8􀀀0.8 Ga. However, there are recent reports of siderite-dominated IFs within this t...

作者:: Huajian Wang,Yuntao Ye,Yan Deng,Yuke Liu,Yitong Lyu,Fenglian Zhang,Xiaomei Wang and Shuichang Zhang
文件大小:: 4.1 MiB

Organic Matter accumulation mechanism in the lower cambrian strata from Well luntan 1 in the Tarim Basin NW China

Organic Matter accumulation m... 2024-01-24

关键词:: Luntan 1; Tarim Basin; Lower Cambrian

A large amount of light crude oils have been found within 4000 to 7000 m deep strata of Cambrian, Ordovician, and Silurian reservoirs in the Tarim Basin, NW ...

作者:: Qian Deng
文件大小:: 1.3 MiB

Effect of thermal maturation on chemical structure and nanomechanical properties of solid bitumen

Effect of thermal maturation ... 2024-01-24

关键词:: Solid bitumenNanomechanical propertiesChemical structureMaturation

An abundance of organic matter is present as solid bitumen in highly mature shales. Changes in chemicalstructure of solid bitumen during catagenesis could al...

作者:: Liu Yuke
文件大小:: 3.4 MiB

Lower limit of thermal maturity for the carbonization of organic matter in marine shale and its exploration risk

Lower limit of thermal maturi... 2024-01-24

关键词:: Lower Silurian; Longmaxi Formation; marine shale; thermal maturity; organic matter carbonization; resistivity logging; explorationrisk

Based on the drilling data of the Silurian Longmaxi Formation in the Sichuan Basin and periphery, SW China, the Ro lower limits and essential features of the...

作者:: WANG Yuman,LI Xinjing,CHEN Bo,WU Wei,DONG Dazhong,ZHANG Jian,HAN Jing,MA Jie,DAI Bing,WANG Hao,JIANG Shan
文件大小:: 2.3 MiB

Multielement Imaging Reveals the Diagenetic Features and Varied Water Redox Conditions of a Lacustrine Dolomite Nodule

Multielement Imaging Reveals ... 2024-01-24

关键词:: Multielement Imaging Reveals; Diagenetic Features; Varied Water Redox Conditions; Lacustrine Dolomite Nodule

The genesis of dolostone has long been puzzling for more than two centuries. Although much work has been done on investigating the process of dolomitization,...

作者:: Yuke Liu,Wenyuan He,Jinyou Zhang,Zhenwu Liu,Fazi Chen,Huajian Wang,Yuntao Ye,Yitong Lyu,Zhiyong Gao,Zhichao Yu,Lina Bi and Shuichang Zhang
文件大小:: 7.4 MiB