West Tianshan Saridala, Along The Rock Sequence Division And Tectonic Setting Of Study

The studying area is located to unite position of the north Tianshan tectonic setting and the middle Tianshan tectonic setting. Bingdaban fault is boundary, each other belong to hyperplasia belt of two plates. This paper come down to rock bodies have the Hongwuyueqiao rock bodies, the Wulute rock bodies, the kuikedaban rock bodies, the aruga'ersala rock bodies, the Haireke rock bodies and the ayouqiu'erke rock bodies of the northern Tianshan tectonic belt; The Heixionggou rock bodies, the Qiaolunge'er rock bodies, the Saridala rock bodies, the Bingdaban rock bodies, the sa'ersayi rock bodies, Wulasutanwutu'aiken rock bodies and the Wusutengdunde rock bodies of the middle Tianshan tectonic belt, numbers of all rock bodies is fourteen . The author merger fourteen rock bodies into five magma sequence, difference of analysis and discuss in merger principle, evience and mostly characters,formative tectonic setting and magma evolvement of magma sequence . Gained achievement as follows:1. The investigate area was disparted two tectonic magma belt, that is middle Tianshan tectonic magma belt and north Tianshan tectonic magma belt. The former include to the Bingdaban sequence, the Heixionggou sequence and the Wulasutanwutu'aiken sequence .The latter include to the Wulutedaban sequence and the Hongwuyueqiao sequence.2. Based on U-Pb isotopic dating method, it is ascertained that the age of Bingdaban sequence is 432Ma, the Heixionggou sequence 374Ma, the Wulasutanwutu'aiken sequence 923Ma, the Wulute sequence 302Ma, the Hongwuyueqiao sequence 310Ma.3. According to the analyse of petrochemistry, microelement, lanthanon and cause of formation type of rock body, sum up the all sequences are S-type granitoid .4. According to account for the alkalinity rate and aluminium exponent, the studying area granites mostly is calc-alkaline.5. Rocks of five sequences all are enriching LREE, and form environment all are volcanic arc environment.6. Rock bodies form depth is middle-deep to deep belt (under the earth's surface 6.5Km-20Km) in the investigate area, denudation degree of the north Tianshan tectonie magma belt is middling, but mid-Tianshan is more bigger thanthe north Tianshan, at the same time , Perch mechanism of rock bodies all show character of passivity continent perch .7. Oxide content , magma variation exponent, LIL element and HFS element continent of trace element, E REE and (Sm/Nd) Nn (La/Yb) ^ S Eu from high to low evolution trend gradually alone distance increase with the Bingdaban fault, reflecting to affinity in active magmatism and Bingdaban fault.