The various geological phenomena related to formation of the composite body,including marginal migmatite,pegmatite in the contact between two granite bodies,quartz-fluorite-calcite veins over pegmatite,intermediate-basic dikes,etc.

Their principal part is the Kengbei complex massif which is composed of Lower Jurassic, Late Jurassic and Late Jurassic-Lower Cretaceous quartzdiorite, granodiorite, adamellite and syenogranite.

Zhangpu complex is a large Mesozoic complex, which is composed of pyroxene-bearing diorite, quartz diorite (quartz monodiorite), granodiorite, monzonitic granite, syenogranite and alkali-feldspar granite.

Petrogenetic models of the composite granitic plutons in the mid-western Nanling Region;

Mesozoic Era complex plutonic masses from Shangyong area are composed of the plutones that are formed by Indosinian and Yanshanian cycle of structural magma and have different combination types.