The deuterium content of water in some volcanic glasses
The deuterium content of water in some volcanic glasses
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某些火山玻璃中水中的氘含量
DOI：
10.1016/0016-7037(58)90059-0
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发表时间：
1958
影响因子：
5
通讯作者：
Robert L. Smith
中科院分区：
文献类型：
--
作者：
I. Friedman;Robert L. Smith
测定了11个不同地区珍珠岩和黑铁矿共存时提取的水中的重氢组成(相对于密歇根湖水=0.0)。虽然加利福尼亚州奥兰查附近的两个样本的水分含量约为0.92%，但黑岩的水分含量一般在0.09%至0.29%之间。相对氚浓度为−4.6%~−12.3%。共存的珍珠岩含有2.0%至3.8%的水，相对氚浓度为−3.1%至−16.6%。珍珠岩中的氢浓度与封闭的黑铁矿中的氢浓度无关。珍珠岩水中的氢浓度与现代大气降水中的氢浓度有关，珍珠岩水中的氚含量比珍珠岩所在地区的地下水少约4%。上述关系适用于来自新墨西哥州北部、内华达山脉东坡的珍珠岩。加州海岸山脉、黄石公园、怀俄明州和新西兰。由于黑铁矿中的水与大气降水无关，而包体珍珠岩中的水与大气降水有关，因此我们认为这是黑岩的二次水化作用形成高含水率珍珠岩玻璃的证据。
The deuterium-hydrogen composition (relative to Lake Michigan water = 0.0) of water extractsd from coexisting perlite and obsidian from eleven different localities was determined. The water content of the obsidians is generally from 0.09 to 0.29 per cent by weight, though two samples from near Olancha, California, contain about 0.92 per cent. The relative deuterium concentration is from −4.6 to −12.3 per cent. The coexisting perlite contains from 2.0 to 3.8 per cent of water with a relative deuterium concentration of −3.1 to −16.6 per cent. The deuterium concentration in the perlites is not related to that in the enclosed obsidian. The deuterium concentration in the perlite water is related to the deuterium concentration of the modern meteoric water and the perlite water contains approximately 4 per cent less deuterium than does the groundwater of the area in which the perlites occur. The above relations hold true for perlites from northern New Mexico, east slope of the Sierra Nevada. California Coast Range, Yellowstone Park, Wyoming, and New Zealand. As the water in the obsidian is unrelated to meteoric water, but the enclosing perlite water is related, we believe that this is evidence for the secondary hydration of obsidian to form high water content perlitic glass.