Actual granitoid analytical data of 767 composited samples are presented here. The data source is 6080 samples collected mainly from 750 large- to middle-sized granitoid bodies across China. Data from the composited s...Actual granitoid analytical data of 767 composited samples are presented here. The data source is 6080 samples collected mainly from 750 large- to middle-sized granitoid bodies across China. Data from the composited samples, which includes that of 70 elements, is analyzed according to geological age - Archeozoic （Ar）, Proterozoic （Pt）, Eopaleozoic （PZl）, Neopaleozoic （Pz2）, Mesozoic （Mz）, and Cenozoic （Cz） - and three major compositional varieties, e.g. alkali-feldspar granite, syenogranite and adamellite. Petrochemical parameters, trace-element content and rare-earth element （REE） distribu- tions of the different rock types and geological ages are characterized, and change tendencies through Archean to Cenozoic time are recorded. The comprehensive analytical data presented here has not been previously published. This significant data set can be used as fundamental information in studies of basic China geology, magma petrogenesis, ore exploration and geochemistry.展开更多
The growth index of a fault is related not only to its activity rate but also to the deposition rate, especially in seriously truncated area, the growth index is serious distorted. But this situation has been neglecte...The growth index of a fault is related not only to its activity rate but also to the deposition rate, especially in seriously truncated area, the growth index is serious distorted. But this situation has been neglected for a long time. Based on growth index and fault activity rate, the activity intensity of Linnan fault is studied, and it is so considered that the conclusion of latter is right. The speed of activity of a fault can be directly attained from the duration of sedimentation and reflects quantitatively the activity intensity of the fault, thus the terminology of the growth index of fault is practically meaningless. Fault activity was strong during Dongying time, and the buried depth of stratum is shallow, so fault sealing is worse, hydrocarbons migrated to Qianguantun and Qudi areas. This is important to hydrocarbon accumulation. Fault activity intensity was big during Minghuazhen time, which determined the vertical hydrocarbon distribution.展开更多
基金sponsored by a project of the Special Society Commonwealth research funds of the Ministry of Science and Technology,P.R.China(No.2001DIB10076)
文摘Actual granitoid analytical data of 767 composited samples are presented here. The data source is 6080 samples collected mainly from 750 large- to middle-sized granitoid bodies across China. Data from the composited samples, which includes that of 70 elements, is analyzed according to geological age - Archeozoic （Ar）, Proterozoic （Pt）, Eopaleozoic （PZl）, Neopaleozoic （Pz2）, Mesozoic （Mz）, and Cenozoic （Cz） - and three major compositional varieties, e.g. alkali-feldspar granite, syenogranite and adamellite. Petrochemical parameters, trace-element content and rare-earth element （REE） distribu- tions of the different rock types and geological ages are characterized, and change tendencies through Archean to Cenozoic time are recorded. The comprehensive analytical data presented here has not been previously published. This significant data set can be used as fundamental information in studies of basic China geology, magma petrogenesis, ore exploration and geochemistry.
文摘The growth index of a fault is related not only to its activity rate but also to the deposition rate, especially in seriously truncated area, the growth index is serious distorted. But this situation has been neglected for a long time. Based on growth index and fault activity rate, the activity intensity of Linnan fault is studied, and it is so considered that the conclusion of latter is right. The speed of activity of a fault can be directly attained from the duration of sedimentation and reflects quantitatively the activity intensity of the fault, thus the terminology of the growth index of fault is practically meaningless. Fault activity was strong during Dongying time, and the buried depth of stratum is shallow, so fault sealing is worse, hydrocarbons migrated to Qianguantun and Qudi areas. This is important to hydrocarbon accumulation. Fault activity intensity was big during Minghuazhen time, which determined the vertical hydrocarbon distribution.
