In order to study biostratigraphy and chemical stratigraphy during the Lower Kellwasser event, high resolution conodonts research and chemostratigraphic framework were carried out. The data reveals that the inorganic and organic carbon isotope have a significant positive excursion at the bottom of the Laye section. It is considered that the sample LY-8 is consistent with the Lower Kellwasser boundary. The main reason for the change of carbon isotope in this area is the increase of organic carbon burial, which is caused by the increase of marine primary productivity and anoxia environment possibly.

The authors introduce the multi-component seismic monitoring system AETA (acoustic & electromagnetic testing all in one system). The results of experiments in Yunnan, Sichuan, Tibet, Hebei, Beijing and Guangdong prove that the system AETA has the proper sensitivity with low cost and is easy to be installed. Meanwhile, the raw data and feature data refined from raw data have a good indication of earthquake. More subsequent experiments will be organized in west of China, capital circle of China and Taiwan Strait for deep research on effect of prediction.

Owing to the existing management modes sometimes appear passive effects in work efficiency, in-depth research and informatization degree, a comprehensive management platform of geological data informatization is established. According to the experience of experts, the authors design the general architecture and function modules of the platform, and build a geological database. The system possesses the function of geological data management and maintenance, geological map management and maintenance, integrated information query, user interaction and communication, numerical analysis, data chart and as well as security control. The application shows that the system runs steadily, manages geological data efficiently, greatly improves the efficiency and quality, and provides technical support for the realization of a digital, standard and modern management of geological data.

In comparison with the modern and ancient alluvial fan analogues, the matrix-supported carbonatite boulders and pebbles discretely cropping out to the northeast of Liujing town in Guangxi province, where they unconformably overlie the Lower Devonian Moding and Najiao formations, were described and studied. These discrete red coarse deposits represent the remains of different parts of one Paleogene alluvial fan respectively rather than isolated Devonian collapse in carbonatite cave or other depositions presumed by some related scholars. Based on the causer analysis, the Paleogene alluvial fan is proposed as piedmont alluvial fan sourced by the carbonate hinterland under a dry climate.

Recent collections from six sections, Lanongla area, Tethyan Himalaya allow the establishment of four Buchia subokensis, In ascending order they are Buchia concentrica-Buchia spitiensis; Buchia mosquensis-Buchia rugosa; Buchia fischiana-Buchia blanfordiana; Buchia subokensis assemblage. These Buchia assemblages first demonstrate that not only the Upper Jurassic strata but also the highest Buchia assemblage Buchia subokensis are present in the Lanongla area, which appeared in Lower Cretaceous strata all over the world. This first records the highest Buchia assemblage in Lanongla area.

Contrasting the curve derived from the theory of the evolution of the earth-moon system with the ones based on the analysis of the shelly fossils distributed over the period from Ordovician to modern time reveals great discrepancy. Two turning points exist in the curves based on data analysis. The times of these two points coincident with the occurrence of the largest two extinctions in Permian-Triassic and Cretaceous-Tertiary, which is extensively believed to be results of the extraterrestrial impact. Further analysis on the sedimentary facies of these two boundaries throughout the world, which are previously thought of as a world-wide regression provide us more eloquent records. The mutation of interaction and the phase lag between the earth and the moon caused by extraterrestrial impact, from which the obvious mutation of the torque of the tidal force resulted, give us a reasonable interpretation on these two turning points.

The Southern China plate is located near paleoequator in Devonian. Nayi, Guangxi, is at 0°36'N at Early-Middle Devonian. Muhua, Guizhou, was at 4°10'12''N at Devonian-Carboniferous. It was in the warm and moist climate near paleoequater that the various kinds of biota such as invertebrate, vertebrate, plant developed separately, and had higher diversification. Carboniferous rock deposited at the same time. South China plate slowly moved from south to north in Devonian. The drifting velocity was 0.25-0.26cm per year. The drift of south China Plate maybe related to activity of Terthys ocean.

The carbon isotopic composition in carbonates at Guangxi and adjacent areas shows an isotopic increasing from Lower Devonian to upper Devonian and Carboniferous. The range of δ¹⁸C values vary from a low of -1‰～-4‰ in the Emsian to a high of +0.5‰～+2.5‰ in the Famennian and Toumaisian (C₁). The δ¹⁸O trend for Devonian carbonates reveals a variety with geologic time, showing a W shape as two negative shifts in the Eifelian (D₂) and the Frasnian (D₃), and three positive shifts in the Emsian(D₁), Giverian (D₂), and Famennian and Toumaisian, respectively. The carbon isotopic trend in the Devonian carbonates of south China reflect that the great vicissitude of biosphere and then the atmosphere and sediments happened during the Devonian. Both trends of δ¹³C and δ¹⁸O values in carbonates at Guangxi and adjacent areas are similar to that of trends originally preserved in the low-Mg calcite brachiopoda shells from same latitude, the tropical sea of North America during Devonian. Therefore, both carbon and oxygen isotope compositions in the Devonian carbonates of south China are originally preserved either and could be a potential tool for stratigraphic correlation.