Previous studies demonstrated that melting, initiated by supercritical fluids in the 375–400 °C range, occurred as part of anthracite metamorphism Appalachian Basin. Based on known behavior vitrinite at high temperatures and, to a lesser extent, pressures, it was determined duration heating, and resolidification event about 1 h. In current study, featureless within banded maceral assemblages de...

The main factors of the developmental environment of marine source rocks in continental margin basins have their specificality. This realization, in return, has led to the recognition that the developmental environment and pattern of marine source rocks, especially for the source rocks in continental margin basins, are still controversial or poorly understood. Through the analysis of the trace ...

The concentration of different maceral groups and minerals in coal influence the quality as each them behaves differently during heat treatment. purpose this study is to know how these are behaving at temperature conditions. Therefore, various macerals were concentrated by using heavy liquids specific gravities (1.3, 1.7 1.9). generated density fractions treated with 400, 600, 800 1000 °C. All ...

The shale gas exploration of the Longmaxi Formation in Yangtze Region China has made a significant breakthrough. As an important hydrocarbon generation organism, graptolite is widely distributed shales, but its potential still unclear. Taking shales Middle as example, this paper discusses organic petrological characteristics and contribution to buried carbon. study area can be divided into orga...

The Turpan-Hami Basin is one of the three coal-accumulating basins in Xinjiang. There coal, natural gas, petroleum, sandstone-type uranium ore, and other ore resources Jurassic strata developed inside. This study aims to gain a deeper understanding formation process by studying provenance depositional environment No. 4 coal Sandaoling Mine. results show that extra-low ash yield sulfur coal. Com...

The South Yanchuan block is the deepest developed high-rank coalbed methane (CBM) field in China, geological conditions this are complex and main controlling factors of CBM content various. Thus, a decision-making model potential deep resource based on geographical information system (GIS) weighted linear combination (WLC) established, influence analyzed, favorable areas divided. Results show t...