The Member 2, 3 of Nenjiang Formation in Songliao Basin was studied based on core, log and seismic data. The lineups in seismic profile have the feature of low angle extension, continuous reflection and imbricates distribution, and have low angle progradation structure from east to west. Each sequence can distinguish 4?6 foreset beds, top laminated subject to certain erosion, and the continuity is relatively poor in muddy delta segment. Compared with sedimentary characteristics of the classic delta-mode, the muddy delta has low content of sandy-component than normal delta. The results show that the argillaceous sediment with a low-angle foreset structure has muddy deltaic deposition characteristics, which comes from highly suspension load deposit near the end of subaqueous channel system. The muddy deltaic depositional model of the Member 2, 3 of Nenjiang Formation was built.

By extracting different kinds of seismic attributes, the characteristics of these attributes were analyzed and 8 kinds of attributes that were sensitive to recognize the slump fan were obtained, including the average absolute amplitude attribute, the total absolute amplitude attribute, the maximum absolute amplitude attribute, the maximum trough amplitude attribute, the average energy attribute, the RMS amplitude attribute, the average reflect strength attribute and the arc length attribute, among which the maximum trough amplitude attribute was the best. Combined with the seismic and well profiles, the sedimentary characteristics and the spatial distribution laws of the slump fan of the member 2, 3 of Nenjiang Formation in Maoxing region were preliminarily revealed. The slump fan of Maoxing region is deposited on the front delta facies and has the provenance from the delta deposit which has a northeast direction. It can be distinguished into seven single fans and a single fan covers an area range of 2.8-7.0 km².

Based on the core observation and analytical data, the provenance of the Member 2 and 3 of the Upper Cretaceous Nenjiang Formation in Northern Songliao Basin was estimated according to the mineral content of sedimentary rocks, planar distributing of sandstone, ZTR index of heavy mineral and mudstone color distribution. The results show that the provenance of the Member 2 and 3 of Nenjiang Formation changes with time, but the change is small. The sediments of the Member 2 of Nenjiang Formation are mainly derived from the eastern provenance, whereas the sediments of the Member 3 of the Nenjiang Formation are derived from the eastern and northeastern provenances. Such a provenancial change might be aroused by the uplift of strata in the north area. During the deposition of the Member 2 and 3 of the Nenj iang Formation, three main provenances exist in Northern Songliao Basin: the northeastern source area, the eastern one and the western one. The eastern provenance dominates the sediments of the Member 2 and 3, while the latter Member 3 is dominated by both the eastern and the northeastern provenance. And the western provenance exists during the latter Member 3, but its incidence is small.

The weathering crust of carbonate is of big buried depth, anisotropy, serious heterogeneity and complicated reservoir forming condition. This study applies various techniques, including the comprehensive techniques for analysis of seismic attributes, the 3-D coherent analysis, the spectral decomposition technique, the 3-D visualized technique etc., to comprehensively analyze various seismic attributes of the weathering crust of carbonate and studied the method that is applied to predict the distributing law of the weathering crust of carbonate reservoirs in Tarim basin. This comprehensive method avoids the multi-explain resulted from applying single technique, promotes the precision in predicting similar oil and gas reservoirs, then reduces the drilling risk. This method is available and to a certain degree predicts the positive zones where the weathering crust of carbonate reservoirs form.

The late Sinian and early Cambrian are two most important age of phosphate formation in the west Yangtze area. Phosphate deposits are distributed along the margin, platform and basin in the west Yangtze area. The analysis methods include the paleogeography, petrology, organic geochemistry, geochemistry. The conclusions are drawn that the source of phosphate deposits distributed along the margin originate from the weathering production of continent, while phosphate deposits along the platform and basin gain phosphorus through hot spring on the buttom of the sea floor, which is brought to the sedimentary environment by rising sea-fluid, then accumulated by the organism and microorganism, meanwhile, basin phosphorite keep relatively higher organic carbon content.

This paper discussed the main Mesozoic-Cenozoic tectonic-events, basin evolution, thermochronology and crustal shortening of Tian Shan and its adjacent basins.The basins of south and north Tian Shan have underwent various dynamics stages in Mesozoic-Cenozoic era. The Mesozoic-Cenozoic strata in the basins of south and north Tian Shan showed much information about tectonic e volution. Conglomeratic sedimentation of the latest Jurassic-earliest Cretaceous is consistent with the amalgamation at south margin of Eurasia block, and that of late Cenozoic is related to the India-Asia collision during late Oligocene to early Miocene. So far, the thermochronology data about Mesozoic-Cenozoic cooling events can be divided into three stages: early cretaceous, late OligoceneMiocene and after Pliocene. These thermochronology data is the direct notes of tectonics events in the latest Jurassic-earliest Cretaceous and late Cenozoic. Tian Shan rose quickly during these two periods. Sedimentologic and thermochronological information proved that Tian Shan Area was active in tectonics during the latest Jurassicearliest Cretaceous and late Cenozoic, which were the signs of transformation of basin types. Tarim basin and Junggar basin have the same evolution history: intra-continent faulteddepression basin in Jurassic, intra-continent depression basin from Cretaceous to Eocene,and Rejuvenated foreland basin form Neocene to Quaternary. The deformation of Tian Shan was propagating form west to east, which have illustrated by rate of crustal shortening, timetransgression of Xiyu Conglomerate, and GPS observations. The differential deformation of Tian Shan was related to northward extrusion of Pamir Syntaxis.

Trace elements data for the coal seams in the Jurassic system are used to assess the sedimentary environments of Yanqi Basin, Xinjiang, China. The concentrations，distribution and occurrences of state about trace elements are discussed. Detailed geochemical characteristics on trace elements reveal that: (1) the content of trace elements is low as a whole, but P, V, Ti values are relatively high, indicating that Yanqi Basin belongs to a kind of inland lake environment; (2) they are concentrated obviously on the edge of the basin, the roof and floor and interlayer of the coal seams; (3) P, Sr, Co show affinities with organic matter, however, Cu and Ti mainly associated with clay minerals; (4) the geochemical features, the colorsof sediments and the appearance of coarse detritus in Xishanyao Formation demonstrate that the coal-accumulating environment was gradually transferring from freshwater to brackish in the Jurassic system, and correspondingly the palaeoclimate was changing from humidity to drought.

The super hydrothermal barite deposits occur in west Hunan and east Guizhou. The paper mainly deal with the characteristics of the sedimentary and geochemistry of barite. The results show that the abundant resources are from the hot spots of the crust of the continental margin in early Cambrian, and deposited the Si-P-Ba-PGE series. The Cambrian black shales sediment in anoxia environment, but the degree of reducing was low. The content of organic matter in barite is small, but it is primary. Ba was from the hydrothermal gas and liquid, and the organisms transverse and enrich Ba, and S was from the seawater fractionated by the organisms, the δ³⁴S are as 4.165%.