cretaceous period
白堊紀時期
cretaceous dinosaurs
白堊紀恐龍
cretaceous fossils
白堊紀化石
No creditable macrofossil record of the Fagaceae exists in the Cretaceous deposits and all the Cretaceous microfossil reports remain equivocal and require further study.
白堊紀尚無殼鬥科可靠的大化石記錄，微化石需要進一步研究才能確定親緣關係以及古新世殼鬥科已經分化出兩個類羣。
(2) the Cretaceous pelite unit had undergone progressively increasing degrees of partial melting with the proximity of the Goat Ranch granodiorite;
②變泥質岩發生了遞進部分熔融，表現爲離羊圈花崗閃長巖巖體的距離越遠，部分熔融程度越低；
The study shows that Cretaceous volcanics mainly consist of medium acidic volcanic lava and volcanoclastic rocks, with locally developed basic lava;
結果認爲，白堊紀火山岩以中酸性火山熔岩和火山碎屑岩爲主，局部發育基性熔岩；
Abstract :The Cretaceous greenhouse climate and paleoceanography is one of hot topics in the Earth sciences during the past twenty years.
提要： 白堊紀典型的“溫室”氣候和海洋一直是地學界關注的焦點之一。
Its basement is mainly composed of Paleozoic epimetamorphic rocks and the cover mostly consists of Cretaceous graywacke and organic shale formation,as well as Cenozoic loose elastic accumulations.
筆者通過對前人資料分析研究後認爲：松遼盆地具有良好的成礦地質條件和找礦前景；
In both cases, the researchers have evoked scenarios of Cretaceous vicariance, followed by endemic species radiation within Madagascar and subsequent dispersal from Madagascar to other areas.
這些情形，研究人員已經考慮了白堊紀的隔離，接着特有種在馬達加斯加聽散佈及隨後從馬達加斯加擴散到其中地區域。
The paleo -geotemperature that Carboniferous went through at geologic history could not be too high and commonly was under120℃.The highest geotemperature occurred at late Cretaceous when la...
結合盆地地質情況,石炭系在地質歷史上經歷的古地溫不會太高,一般沒有超過120℃,所經歷的最高地溫時間是晚白堊世,大量有機質在這一時期進行生排烴,具有晚期成烴的特點。
The basin tectonic model: it is intermont basin during late Jurassic to early Cretaceous, developed into faulted-lacustrine basin in Eogene, and evolved into depression in Neogene and Quaternary.
“盆地”構造發育模式爲：從晚侏羅世到白堊紀末期發育的山間“盆地”開始、發展到早第三紀斷陷湖盆的發育、再演化爲晚第三紀及第四紀地陷發育階段。
cretaceous period
白堊紀時期
cretaceous dinosaurs
白堊紀恐龍
cretaceous fossils
白堊紀化石
No creditable macrofossil record of the Fagaceae exists in the Cretaceous deposits and all the Cretaceous microfossil reports remain equivocal and require further study.
白堊紀尚無殼鬥科可靠的大化石記錄，微化石需要進一步研究才能確定親緣關係以及古新世殼鬥科已經分化出兩個類羣。
(2) the Cretaceous pelite unit had undergone progressively increasing degrees of partial melting with the proximity of the Goat Ranch granodiorite;
②變泥質岩發生了遞進部分熔融，表現爲離羊圈花崗閃長巖巖體的距離越遠，部分熔融程度越低；
The study shows that Cretaceous volcanics mainly consist of medium acidic volcanic lava and volcanoclastic rocks, with locally developed basic lava;
結果認爲，白堊紀火山岩以中酸性火山熔岩和火山碎屑岩爲主，局部發育基性熔岩；
Abstract :The Cretaceous greenhouse climate and paleoceanography is one of hot topics in the Earth sciences during the past twenty years.
提要： 白堊紀典型的“溫室”氣候和海洋一直是地學界關注的焦點之一。
Its basement is mainly composed of Paleozoic epimetamorphic rocks and the cover mostly consists of Cretaceous graywacke and organic shale formation,as well as Cenozoic loose elastic accumulations.
筆者通過對前人資料分析研究後認爲：松遼盆地具有良好的成礦地質條件和找礦前景；
In both cases, the researchers have evoked scenarios of Cretaceous vicariance, followed by endemic species radiation within Madagascar and subsequent dispersal from Madagascar to other areas.
這些情形，研究人員已經考慮了白堊紀的隔離，接着特有種在馬達加斯加聽散佈及隨後從馬達加斯加擴散到其中地區域。
The paleo -geotemperature that Carboniferous went through at geologic history could not be too high and commonly was under120℃.The highest geotemperature occurred at late Cretaceous when la...
結合盆地地質情況,石炭系在地質歷史上經歷的古地溫不會太高,一般沒有超過120℃,所經歷的最高地溫時間是晚白堊世,大量有機質在這一時期進行生排烴,具有晚期成烴的特點。
The basin tectonic model: it is intermont basin during late Jurassic to early Cretaceous, developed into faulted-lacustrine basin in Eogene, and evolved into depression in Neogene and Quaternary.
“盆地”構造發育模式爲：從晚侏羅世到白堊紀末期發育的山間“盆地”開始、發展到早第三紀斷陷湖盆的發育、再演化爲晚第三紀及第四紀地陷發育階段。
探索常見搜尋詞彙