理学 >>> 地质学 >>> 数学地质学 地质力学 动力地质学 矿物学 矿床学与矿相学 岩石学 岩土力学 沉积学 古地理学 古生物学 地层学与地史学 前寒武纪地质学 第四纪地质学 构造地质学 大地构造学 勘查地质学 水文地质学 遥感地质学 区域地质学 火山学 石油与天然气地质学 煤田地质学 实验地质学 地球化学 地质学其他学科
搜索结果: 1-15 共查到地质学 Devonian相关记录17条 . 查询时间(0.086 秒)
Additional morphological and histological features of a stem-group sarcopterygian fish Meemannia eos (Zhu et al. 2006) are provided, including dermal bone features, endocranial structures in the o...
The Estonian Devonian sediments consist of carbonate, siliciclastic, and mixed carbonate-siliciclastic deposits that have undergone extensive dolomitization. Chemical analysis of 165 samples and XRD m...
The distribution and composition of dolomitized rocks and stoichiometry of dolomite in southern Estonia in the Ordovician, Silurian, and Devonian were studied on the background of the facies, sediment...
Dermal scales of a new chondrichthyan were discovered in four levels in sandstones of the Härma Beds (lower part of the Burtnieki Regional Stage, Middle Devonian) in the Karksi outcrop of South E...
Pander (1856, Monographie der fossilen Fische der silurischen Systems der Russisch–Baltischen Gouvernements.Obersilurische Fische. Buchdruckerei Kaiserlichen Akademie des Wissenschaften, St. Pete...
The roundness and surface texture of quartz grains were studied in Devonian sediments of 32 drill cores. Roundness was estimated in more than 800 samples and surface textures were examined under scann...
The type species of the brachiopod genus Bicarinatina Batrukova was first described by Kutorga in 1837 (Zweiter Beitrag zur Geognosie und Paläaontologie Dorpats und seiner nächsten Umbegebun...
Histological structure of the type and newly collected teeth of the shark Mcmurdodus whitei TURNER &YOUNG,1987, from a Devonian (?late Emsian-early Eifelian) limestone outcrop in the Cravens Peak Beds...
Devonian filter-feeding sharks     Chondrichthyes  Teeth  Devonian  Frasnian  Utah  Nevada       2009/10/20
Upper Frasnian rocks of Utah and Nevada yielded several multicuspid, low-crowned shark teeth. It is proposed that they were used mainly for filtering food from water. Two new chondrichthyan species be...
Protodus jexi from the early Emsian ‘Atholville beds’, Campbellton Formation between Atholville and Campbellton,northern New Brunswick, Canada, is redescribed from material studied by R. H. Traquair a...
The scales of T.schultzei display significant morphological variation and are characterized by a very fine, comparatively wide and flat crown with longitudinal ribs and a small and short neck. The gro...
Well preserved palaeobottomsurfaceswith stromatoporoids are exposed in twoDevonian localities in theHoly Cross Mountains in central Poland: Skały and Bolechowice-Panek quarries. The stromatoporoi...
Devonian rocks crop out in several thrust sheets in the sedimentary belt of North-Western Karakorum, both to the south and to the north of the Reshun Fault.Gentlymetamorphosed Devonian dolostones and ...
Late Devonian (Famennian) conodont faunas have been described from two incomplete stratigraphic sections (GD and GB) of the Ayineburnu member of the Tuzla formation, Denizliköyü, Gebze, Kocaeli,...
The Late Devonian Gümüşali formation of the eastern Taurides is a terrigenous-carbonate rock sequence about 600 m thick, consisting mainly of quartz sandstone, quartz siltstone, shale, and carbon...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...