geological era
英 [ˌdʒiːəˈlɒdʒɪkl ˈɪərə]
美 [ˌdʒiːəˈlɑːdʒɪkl ˈɪrə]
网络 地质年代
英英释义
noun
- a major division of geological time
双语例句
- A major division of geological time; an era is divided into two or more periods.
地质时期的主要分期；一代分为两个或多个纪。 - According to the records of early human activities, Nihewan strata is an invaluable geological relic that has undergone the evolution of the earth and creations since the later Cenozoic Era.
记录中国北方晚新生代以来地球演化、生物进化与古人类活动的泥河湾层，是珍贵的地质遗迹。 - Ore-forming geological conditions and prospecting directions of volcanic type gold deposits in Mesozoic era, western Liaoning
辽西地区中生代火山岩型金矿成矿地质条件与找矿方向 - Some elementary anomalies of indium and other elements have been found at the bottom of the stratum, it can be used as the evidence to separate geological era.
前人在该套地层底部发现了铱等元素异常，认为可作为划分其地质时代的依据。 - This paper presents the distribution characters of the geological era and space about the strata-bound barytes ore deposits in Guizhou.
本文概述了贵州层控重晶石矿床的时空分布特征。 - Era A unit of the geological time scale that is made up of several periods, e.g. the Mesozoic Era comprises the Triassic, Jurassic, and Cretaceous periods.
代：量度地质时期的分类单位，代由若干时期组成，如中生代包括三叠纪、侏罗纪和白垩纪。 - From the viewpoint of lithofacies and paleogeography this paper describes the geological developmental history of North China Basin, where in middle-late Proterozoic Era it was a paleo-land with sediments of aulacogens developed in its north and south margins.
文中以岩相古地理的观点论述了华北盆地的地质发展历史，即中晚元古代为古陆区，南北边缘地带发育拗拉槽型沉积； - Therefore, the geological era of Gutian Formation are certain to be the Late Early Permian.
植物群的地质时代为早二叠世晚期。 - Mass extinction and geological events between Palaeozoic and Mesozoic Era
古生代中生代之交的生物绝灭和地质事件四川广元上寺二叠系三叠系界线和事件的初步研究 - In the history of the geological development of Sichuan province, the crustal evolution went through four different periods: ( 1) Presinian period era, ( 2) Sinian period-Paleozoic era-Early Mesozoic era,( 3) Middle-Late Mesozoic era, ( 4) Cenozoic era.
四川省在地质发展史上，地壳的演化先后经历了四个不同时期：（1）前震旦纪，（2）震旦纪古生代早中生代，（3）中晚中生代，（4）新生代。