关键词: 黑色沉积物;火山喷山物;矿物组成

Abstract:

A systematic investigation and analysis was conducted on inner structure and exterior morphology of the black deposits collected between 40 and 50m in depth of and ice core from Low Dome of Collins Ice Cap. King George Island, Antarctica. Optical verification under a polarizing microscope showed these black deposits have strong indicative structure of volcano extrusive. The evident indication on aspect of morphology of volcano extrusive was found through EPM-810Q type electronic probe. The whole element qualitative analysis tested and verified the several speculate mineral constitution investigated under the polarizing mi croscope. It is volcano extrusive be found and verified at the first time in an ice core from Collins Ice Cap.