英语词汇“tithonian stage”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	tithonian stage
释义	Tithonian Stage Tithonian Stage the uppermost stage of the Jurassic system in the Mediterranean region. The Tithonian stage was distinguished by the German geologist A. Oppel in 1856. It is divided into two substages and six zones, according to ammonite composition. It is represented mainly by limestones; in certain places it contains deposits of gypsums, rock salts, and potassium salts. In the USSR it is found in the Crimea, the Caucasus, and Kopetdag. The Tithonian stage is stratigraphically equivalent to the Volga stage of the East European Platform (see alsoPORTLANDIAN STAGE).
随便看	combined arms service support command combined arms staff course combined arms staff trainer combined arms studies analysis activity combined arms support command combined arms synthetic experiment combined arms tactical exploitation of national capabilities systems-engineer combined arms tactical trainer combined arms tactical trainer/training simulator combined arms tactical training center combined arms tactical training exercise combined arms tactical training simulator combined arms team combined arms test activity combined arms test bed combined arms training combined arms training activity combined arms training and development centre combined arms training board combined arms training center combined arms training development activity combined arms training integration evaluation system combined arms training strategy combined arms training systems combined army forces

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Tithonian Stage

Tithonian Stage