Middle Precambrian
1.NEW RECOGNITION ON SOME GEOLOGICAL PROBLEMS RELATED TO THE EARLY-MIDDLE PRECAMBRIAN IN THE WESTERN SHANDONG MOUNTAINOUS REGION
2.THE DIVISION, CORRELATION, METAMORPHISM AND MINERALIZATION FEATURES OF THE LOWER AND MIDDLE PRECAMBRIAN IN THE HELANSHAN MOUNTAIN -ALASHAN REGION, CHINA
3.A GRANULITE FACIES BELT OF THE MIDDLE-WEST PART EN NORTH MARGIN OF NORTH CHINA CRATON: AN EARLY PRECAMBRIAN CONTINENT- CONTINENT COLLISION OROGENIC BELT
4.U-Pb AGE AND EVOLUTION OF PRECAMBRIAN METAMORPHIC ROCKS OF MIDDLE TIANSHAN UPLIFT ZONE, EASTERN TIANSHAN, CHINA
5.CHARACTERISTICS AND STRUCTURAL ENVIRONMENT OF THE EARLY PRECAMBRIAN WELDED TUFFS IN XIAOXIANLING DISTRICT, MIDDLE PART OF KANGDIAN AXIS
6.THE DIVISION PROBLEM ABOUT THE AGES OF THE TUMEN GROUP OF THE UPPER PRECAMBRIAN IN THE MIDDLE-SOUTHERN SHANDONG PROVINCE
7.The Bogda orogen is situated between the Jungar and the Turfan Hami Precambrian blocks, and was an early to middle Carboniferous intracontinental rift, which was closed during the middle to late Carboniferous times.
8.Carbonaceous load-cast fossils found in black shale in the middle part of the late Late Sinian Li-uchapo Formation at Ligonggang,Taoyuan,western Hunan,provide a rare Burgess-Shale-type tapho-nomic window for late terminal Precambrian biology.
9.No. 2 Through the study of the regional ore-forming geological background and the characteristics of the deposits in the diggings, the author think that the ore-forming materials come from the old basement of Precambrian system, Cambrian System, Devonian System, the carbonate rocks and the alkali-basalt of Gejiu formation in Middle Triassic Series, the granites of late Yanshanian epoch etc.
