Saline Minerals in the Lewis Cliff Ice Tongue, Buckley Island Quadrangle, Antarctica
Saline Minerals in the Lewis Cliff Ice Tongue, Buckley Island Quadrangle, Antarctica
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南极洲巴克利岛四边形刘易斯悬崖冰舌中的盐矿物
DOI：
10.1029/ar050p0057
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发表时间：
2013
影响因子：
3.1
通讯作者：
A. Jull
中科院分区：
文献类型：
--
作者：
J. Fitzpatrick;D. Muhs;A. Jull
含盐矿物，包括苏打石（NaHCO 3）、天然碱（NaHCO 3）。碳酸钠。在南极洲巴克利岛四边形刘易斯崖附近的冰碛和冰内沉积物中发现了Na 2SO 4、Na 6（CO 3）（SO 4）2、Na 2B 4 O 5（OH）4.8 H2O、Na 2SO 4、Na 6（CO 3）（SO 4）2、NaCl和可能的奥石（K2 SO 4）。这是第一次报告在非洲大陆内陆发现这些矿物，也是第一次报告在非洲大陆任何地方发现这些矿物。苏打石被认为是从冰下溶液中沉淀出来的，冰下溶液是由富含钠、含二氧化碳的温泉水与同位素轻的冰川融水混合而成的。在冰碛中的碳酸盐/苏打石组合的起源是，迄今为止，未知。
Saline minerals, including nahcolite (NaHCO3), trona (NaHCO3. Na2CO3. 2H20), borax (NaeB405 (OH) 4.8 H20), thenardite (Na2SO4), burkeire (Na6 (CO3)(SO4) 2), halite (NaC1), and possibly arcanite (K2SO,,), have been found in a moraine and as englacial deposits in the vicinity of Lewis Cliff, Buckley Island Quadrangle, Antarctica. These are the first reported occurrences of these minerals from the interior of the continent and the first reported occurrence of borax anywhere on the continent. The nahcolites are believed to have precipitated from a subglacial solution formed by the mixing of a sodium-rich, CO2-charged thermal spring water with isotopically light glacial meltwater. The origin of the borax/nahcolite assemblage in the moraine is, as yet, unknown.