ON THE ORBITOSPHENOID IN SOME FISHES.
ON THE ORBITOSPHENOID IN SOME FISHES.
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关于某些鱼类的眶蝶骨。
DOI：
10.1126/science.28.717.413
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发表时间：
1908
期刊：
影响因子：
56.9
通讯作者：
E. C. Starks
中科院分区：
文献类型：
--
作者：
E. C. Starks
拉马奇先生和我在170种常见的矿石和矿物中发现了铷和钠，铷和锂与这些常见的元素通常是共生的。因此，在62种铁矿石中，发现了61种铷。在16种最纯净的块状矿物--铷赤铁矿中，有4种含有铷。在钾和铷存在的地方，锂总是存在的，它存在于石灰石、灰尘、贝塞默火焰、普通的烟斗泥、烟斗和各种硅质矿物中，如都柏林花岗岩、多尼加尔蓝晶石（含98%的硅酸铝）和石棉中。它存在于从云中落下的尘埃中，存在于火山灰中，存在于煤烟中，存在于化学工厂的烟尘中，存在于铜冶炼和精炼工厂的烟尘中。最后一种材料含有锂、钠、钾、铷和铯、铜、银、钙、锶、铝、镓、铟、铊、铁、镍、钴、锰、铬、铅、锌、镉和锡。根据这样的证据，不可能证实钾是一种比锂分布更广的元素，或者锂不可能是灰尘、玻璃、铜等的成分。
Mr. Ramage and I found in 170 common ores and mineralspotassium and sodium, and with these common elements rubidium and lithium were very generally associated. Thus, of sixty-two iron ores, rubidium was found in sixty-one. In sixteen rel hematites, massive minerals of the purest type, rubidium was contained in four. Where potassium and rubidium occurred lithium was invariably found. It was found in limestones, in dust, in the Bessemer flame, in ordinary pipeclay, tobacco pipes, and a great variety of siliceous minerals, such as the Dublin granites; in Donegal kyanite, which contains 98 per cent. of aluminium silicate; and in asbestos. It was found in dust which fell from the clouds, in volcanic dust, in soot, in flue-dust from chemical works, and in that from copper smelting and refining works. This last material contained lithium, sodium, potassium, rubidium and cesium, copper, silver, calcium, strontium, aluminium, gallium, indium, thallium, iron, nickel, cobalt, manganese, chromium, lead, zinc, cadmium and tin. Upon such evidence as this it is impossible to corroborate the statement that potassium is a more widely distributed element than lithium, or that lithium is an unlikely constituent of dust, glass, copper, etc.