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| QUATERNARY HOLOCENE STRATIGRAPHY IN SIPING-SHUANGLIAO AREA IN THE SOUTH MARGIN OF SONG-LIAO BASIN |
| GUO Wei-jing, CHEN Shu-liang, LIU Jie |
| Liaoning Institute of Geological Survey, Dalian 116100, Liaoning Province, China |
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Abstract The south margin of Song-Liao basin is mostly covered by Quaternary strata with various types of origin. Based on their origin types, the Holocene strata distributed in Siping-Shuangliao area can be divided into following units: 1) the Wenquanhe formation of alluvial origin in early-middle epoch; 2) the Tantu formation of limnetic accumulation origin in the middle epoch; 3) the Daliaohe formation of alluvial origin in late epoch; 4) the Horqin formation of eolian accumulation origin; and 5) the Xieriga formation of limnetic accumulation origin. The early and middle Holocene epoch was in an environment of relative warm and humid veld to arid meadow vegetation; while the late epoch was in warm and humid veld to relative arid meadow vegetation environment.
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Received: 03 April 2006
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2007, Vol. 16 
