Isotopic ratios for subglacial precipitates from East Antarctica

U-Series composition of subglacial precipitates from East Antarctica. Samples are from Elephant Moraine and the Pensacola Mountains. They are chemical precipitates of either entirely calcite or opal and calcite.

东南极洲冰下沉积物（subglacial precipitates）的铀系（U-series）组成。样本采自象冰碛（Elephant Moraine）与彭萨科拉山脉（Pensacola Mountains）。此类沉积物均为化学沉积成因，其组分要么完全为方解石（calcite），要么由蛋白石（opal）与方解石共同构成。