Similar words: oil shale, shall, hale, chalet, whale, shallot, shallow, inhale. Meaning: [ʃeɪl] 
n. a sedimentary rock formed by the deposition of successive layers of clay.
n. a sedimentary rock formed by the deposition of successive layers of clay. 
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151 Deep lake oil shale in the lower part of Member 3 of Shahejie Formation is the most important high quality source rock in Dongying Sag.
152 According to oil shale resources situation in our country, more study should be given in the in situ thermal processing technique than retorting processing technique.
153 Gas oil fraction of shale oil is unstable. To address this problem, the authors of the article propose a new solvent extraction-alkali washing refining process.
154 There is a great deal of oil shale, belonging to coal series Kaolin, in a coal mine.
155 The country also abounds in petroleum, natural gas, oil shale, phosphorus and sulphur.
156 The reserves of oil shale in the world was up to 475 billion ton when converted into shale oil and 5.4 times equivalent to the natural oil which proven to be recoverable reserves.
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157 Burgess Shale type preservation involves non mineralized tissues preserved as organic are replicated by hydrous aluminosilicates.
158 Bao ancient group plans for a major deep-sea - a half deep in the ash, black ash-like TLC tuffaceous siltstone, shale tuffaceous, with gray green, with thin gray-tuff interbedded uneven.
159 Pgrolysis mechanism of small - size oil shale was described and its technological flowsheet was introduced.
160 The central shale diapir zone is distributed with numerous diapir-anticlines and nose structures which are adjacent to hydrocarbon sources , being most prospective.