Abstract:

 This study selected the YunnanGuizhouGuangxi Region (E 103°110°,N 22°26°), an area of about 200,000 km2, as the study object to discuss the relationship between the regional stratigraphic geochemical characteristics and the metallogeny based on the stream sedimentary data from 34 map sheets (1:200,000 scale) We come to the following conclusions: (1) Compared with Southern China, there are geochemical blocks of arsenic, antimony, gold, mercury and other lowtemperature elements in this area, with deep derived gold, and high background value of arsenic, antimony and mercury The concomitance of gold with arsenic, antimony and mercury is both inevitable and fortuitous (2) The formation of the high background level of siderophile elements, oxides and mineralizer which are related to basic magmatic activities is the geochemical reflection of the extravasation accompanying the formation of the Youjiang rift valley, the FuningGuanling northsouth strike fault zone, the WenshanFuning trust nappe structure and especially the Emei mantle plume, arising from the magmatic eruption and turbidite volcaniclastic sedimentary geochemistry (3) The eruption of Permian Emeishan basalt in Southwest Guizhou resulted in the abrupt change of gold and a large number of siderophile elements in Permian and Triassic deposits The Youjiang rift valley began its activity at least in the Cambrian, from West Guangxi to Southwest Guizhou as time gone by (4) The source substance of Carlintype gold in “Golden Triangle” of Yunnan, Guizhou, Guangxi Area was related to the rift valley, Tethys and regional deep fault and the deposit of basic igneous rocks and pyroclastic turbidite accompanying the activity of the Emei mantle plume

Key words: stratigraphic geochemistry; evolution; material source; YunnanGuizhouGuangxi“GoldTriangle”; Carlintype gold deposit