The Mazhuang gas reservoir is located in the eastern part of the Junggar Basin. Itsgas-producing pool is averagely 2000 m deep. It is a mid-shallow reservoir. The natural gasrich 2--7% of C<sub>2</sub>-C&l...The Mazhuang gas reservoir is located in the eastern part of the Junggar Basin. Itsgas-producing pool is averagely 2000 m deep. It is a mid-shallow reservoir. The natural gasrich 2--7% of C<sub>2</sub>-C<sub>4</sub> gaseous hydrocarbons is mainly composed of methane. δ<sup>13</sup>C<sub>CH<sub>4</sub></sub>. valuesare--47----45‰, heavier than microbiogenic gas, and lighter than coal--type gas as well asoil--associated gas. The maternal materials of gas source rocks are primarily from the type-Ⅲ organic matter at the low--mature stage （0.5%【R<sub>0</sub>≤0.8%）. The discovery of the reservoiris of great significance not only to the further exploration of natural gas but also to theenrichment of the gas--forming theory and the perfection of the classification of natural gastypes.展开更多
AMS dating was used for bone samples from Neolithic Mazhuang Site,Yucheng County,Henan Province and the result was compared with the ones tested in 1996. The analysis showed that the date of the main cultural layer wa...AMS dating was used for bone samples from Neolithic Mazhuang Site,Yucheng County,Henan Province and the result was compared with the ones tested in 1996. The analysis showed that the date of the main cultural layer was approximately 3900-3300 BC.展开更多
基金Project supported by the National Natural Science Foundation of China.
文摘The Mazhuang gas reservoir is located in the eastern part of the Junggar Basin. Itsgas-producing pool is averagely 2000 m deep. It is a mid-shallow reservoir. The natural gasrich 2--7% of C<sub>2</sub>-C<sub>4</sub> gaseous hydrocarbons is mainly composed of methane. δ<sup>13</sup>C<sub>CH<sub>4</sub></sub>. valuesare--47----45‰, heavier than microbiogenic gas, and lighter than coal--type gas as well asoil--associated gas. The maternal materials of gas source rocks are primarily from the type-Ⅲ organic matter at the low--mature stage （0.5%【R<sub>0</sub>≤0.8%）. The discovery of the reservoiris of great significance not only to the further exploration of natural gas but also to theenrichment of the gas--forming theory and the perfection of the classification of natural gastypes.
文摘AMS dating was used for bone samples from Neolithic Mazhuang Site,Yucheng County,Henan Province and the result was compared with the ones tested in 1996. The analysis showed that the date of the main cultural layer was approximately 3900-3300 BC.
