cretaceous 中文意思是什麼
cretaceous
解釋
adj. 形容詞 白堊（質）的。cretaceous period [system] 【地質學；地理學】白堊紀[系]。
n. 名詞 〈C-〉 【地質學；地理學】白堊紀[系]。
-
The study shows that cretaceous volcanics mainly consist of medium acidic volcanic lava and volcanoclastic rocks, with locally developed basic lava ; medium acidic volcanics mainly consists of calc - alkalic series, was formed in compressive orogenic environment, and has good reservoir property, while cretaceous basis lava mainly consists of alkalic series, was formed in rift environment, and has poor reservoir property
結果認為，白堊紀火山巖以中酸性火山熔巖和火山碎屑巖為主，局部發育基性熔巖；中酸性火山巖以鈣堿性系列為主，形成於擠壓造山環境，儲集性能較好，而白堊紀基性熔巖以堿性系列為主，形成於裂谷環境，儲集性能較差。 -
( 3 ) 6 the 3rd - order sequence have been identified in early cretaceous, the position of sequence is erected on 2 sets andesite
（ 3 ）將下白堊統劃分為6個三級層序，指出本區兩層安山巖的層序位置。 -
Therdly because of the influence of terrain and geological structure, arenaceous resources of different regions are different in mu us. sands are mainly from riverway in northwest ; from efflorescent cretaceous sandstone on account of higher topography in the middle part of mu us ; and sands resources are intricated in southeast, mainly including riverway sands, sands blown by the wind and embedded sands under so
3 、毛烏素沙地因受地形和地質構造影響，不同區域的砂質來源情況不盡相同，西北部地區主要為河道沙；中部地區地勢較高，為白堊系基巖裸露而風化成沙；東南部地區沙質來源情況復雜，主要有：現代河道砂、風積沙、也有埋藏在現代壤土之下的出露古沙。 -
Distribution law of groundwater hydrochemical type in the ordos cretaceous artesian basin
鄂爾多斯白堊系地下水盆地地下水水化學類型的分佈規律 -
Distant effect of jurassic collisions of qiangtang terrane, lasa terrane and paleo - pacific land onto the eurasian land made east qinling - dabie mountains in a compressional circumstance for a long time, and suppressed its orogenic extension ; whereas, cretaceous late - collisional extension and appearance of west pacific trench - arc - basin system relieved east qinling - dabie mountains of external compression, instantly result in violent orogenic lithosphere delamination - extension and depressurized - calefactive melting, and consequently, led to the formation of large scale early cretaceous granitoids and intermediate - acidic volcanic rocks
羌塘地體拉薩地體和西太平洋古陸在侏羅紀與歐亞大陸拼貼碰撞的遠距離效應使東秦嶺大別造山帶長期處于擠壓環境，伸展作用被抑制白堊紀的碰撞晚期伸展和西太平洋溝弧盆體系的遠距離效應使東秦嶺大別地區的外部擠壓消失，導致造山帶巖石圈迅速強烈拆沉伸展和減壓增溫熔融，從而形成大規模早白堊世花崗巖類和中酸性火山巖。 -
The term is used at various localities in north africa, includes beds ranging from carboniferous to early cretaceous.
在北非不同的地方使用這個名稱，包括從石炭紀到早白堊紀的地層。 -
The fault controlled the magmatism and metallization relevant to the contact zone, and deformed successively and produced cataclastic rocks and two sets of joints ; the second stage was from late cretaceous to eocene. the fault zone deformed right - laterally under ne - sw striking transtention, and new joints zone was produced at the end of the two main faults because of local stress concentration. the fault produced inchoative cataclastic rocks, and two sets of typical joints in plutons ; the third stage of deformation was relatively faint and only a little of microcracks was produced and infilled with vei ns in the deformed rocks, which was during the himalayan movement
其後的繼承性活動在斷裂帶內形成碎裂程度最強達到碎裂巖的碎裂巖系列構造巖，變形帶兩側發育兩組典型的共軛剪節理；第二次在晚白堊世?始新世，斷裂在北東?南西向近水平擠壓作用下右行張扭性活動，斷裂帶兩主斷裂在斜列重疊的端部由於局部應力集中進一步擴展形成節理帶，而斷裂在巖體區也發育兩組典型的共軛剪節理，斷裂內形成初碎裂巖為主的構造巖；第三次是喜山期以西側抬升、東側下降的強烈升降為主的活動，在基巖中，主斷層兩側圍巖出現微破裂。 -
Chagan sag is a secondary tectonic unit in chagandelesu depression, northeastern yingen - eji ' naqi basin, and the basement of the basin is a paleozoic fold belt of continental margin or island arc at the connection region of north china plate * tarim plate and kazakstan plate, with the character of erogenic belt. in working area and its adjacent area, the forming tectonic setting of indosinian intrusion was that orogenic belt pressed strongly, intracontinental subduction ; that of early yanshan movement epoch was the stress field transferred from compression to extension meanwhile the incrassate crust of orogenic zone turned to extensional collapse ; and that of early cretaceous volcanics was that the area structure extensional collapse further more during the post period of orogenic phase
查干凹陷屬于銀根?額濟納旗盆地東北端查干德勒蘇坳陷內的一個次級構造單元，其盆地基底為古生代時期華北板塊、哈薩克斯坦板塊和塔里木板塊交接部位形成的陸緣或島弧褶皺帶，具有古生代造山帶的性質。研究區及鄰區印支期侵入巖形成於造山帶強烈擠壓陸內俯沖的構造環境；燕山早期侵入巖形成於由擠壓轉向拉伸、造山帶的增厚陸殼開始發生伸展垮塌的構造環境；早白堊世火山巖形成於造山期后進一步發生伸展垮塌的區域構造環境。 -
Cryptozoologists are especially proud of the catch in 1938 of a coelacanth, an archaic - looking species of fish that had been thought to have gone extinct in the cretaceous
令未知生物學家尤其驕傲的是1938年捕捉到的腔棘魚， ?是一種樣貌古老的魚類，原先認為在白堊紀便已滅絕。 -
Paleogeographic data suggest the first occurrence of the taihangshan gravity lineament was initially formed during the early cretaceous, which is coeval with the peak of mesozoic magmatism in this region
巖相古地理分析說明太行山重力梯度帶的雛形形成於早白堊世，與華北中生代巖漿活動的高峰相吻合。 -
The basins in west china were downfaulted depression basins in jurassic and cretaceous, and foreland basins in cenozoic. these basins formed not only marine facies source rocks ( oil type ) and reservoirs but also continental facies source rocks ( coal type and oil type ) and reservoirs
因此，中國類前陸盆地基本石油地質條件與國外富油氣前陸盆地相比，除海相烴源巖的質量不及後者外，其它方面並無明顯不足，且具有發育陸相烴源巖和儲集巖的優勢。 -
The cretaceous extinction was like a terrible streak of bad luck lasting millions of years.
白堊紀的生物絕滅，猶如一場持續千百萬年的可怕厄運。 -
Only in the tropics were numerous late cretaceous groups extinguished during peaks in their evolution.
只是熱帶地區才有大批晚白堊紀生物類群正值其演化的極盛時期突然消亡。 -
The stippled area shows the distribution of a clean, permeable sandstone in the lower part of the lower cretaceous muddy formation.
圖上畫點部分為下白堊紀馬迪組下部潔凈，滲透的砂巖分佈區域。 -
Extreme climates events in the cretaceous and paleogene
白堊紀至早第三紀的極端氣候事件 -
Early cretaceous in age diagnosis yanosteus of middle size
鑒定特徵體中等大小的燕鱷。 -
Upper cretaceous rudist bioherms in southwestern tarim
塔里木盆地西南地區上白堊統生物丘 -
The last dicynodont : an australian cretaceous relict
白堊紀的最後的二齒獸[論文摘要] ！ ！ -
Cretaceous - tertiary extinction event
白堊紀-第三紀滅絕事件 -
Cretaceous period, 145 million years ago, was the age of the dinosaurs
白堊紀期間， 145百萬年前，是恐的年。
分享友人