However,studies on marine ascidian skeletons have revealed that ACC as a transient precursor to crystalline CaCO3 can stably exist for long time in organisms,and the stable ACC is usually membrane-embedded.

但由海鞘類動(dòng)物的研究表明一边亲一边桶一边摸免费视频，ACC可作為碳酸鈣晶體礦物的前驅(qū)體在生物體內(nèi)穩(wěn)定存在，并且這些生物成因的ACC常常是由膜包裹著的亚洲区欧美性爱。

However, studies on marine ascidian skeletons have revealed that ACC as a transient precursor to crystalline CaCO3 can stably exist for long time in organisms, and the stable ACC is usually membraneembedded.

但由海鞘類動(dòng)物的研究表明日韩小草在线，ACC可作為碳酸鈣晶體礦物的前驅(qū)體在生物體內(nèi)穩(wěn)定存在，并且這些生物成因的ACC常常是由膜包裹著的国产精品民宅偷窥盗摄。

The upper layer, with homogeneous composition, is mainly composed of intact phosphatic foraminifer fossils and nannofossils as well as abiotic carbonate fluorapatites, representing the biologic and autogenic origin. However, the lower layer, with visible metasomatic texture and relatively high Si, Al, K and Fe, is notably different from the upper one, and seems to have been formed mainly by replacement of carbonates.

上層磷酸鹽由大量形態(tài)結(jié)構(gòu)清楚的磷酸質(zhì)有孔蟲(chóng)和超微化石以及非生物碳氟磷灰石組成精品一区二区无码不卡aⅴ，成分均一，雜質(zhì)少美国又黑又粗A片，表現(xiàn)出生物成因和原生白沉積特點(diǎn)91欧美激情；下層磷酸鹽變化復(fù)雜，具有特征的交代結(jié)構(gòu)综合久久网，混雜較高的Si亚洲欧美淫秽性生活视频免费看、Al、K黄色无码免费v、Fe成分谁有最新日韩黄色网，顯示以磷酸鹽交代碳酸鹽成因?yàn)橹鳌?/p>

But the biogenic sulfur isotopic fractionation process was complicated by many factors.

但生物成因的硫同位素分餾過(guò)程復(fù)雜，受諸多因素的限制日本三级电影网址。

Four main formations of loop bedding in Jiyang sub-basin were upper layers fall down in the process of earthquake, tautening distortion due to earthquake, the frication of earthquake-related surface of fault and the effect of redox and diffuse other formations of loop bedding comprise the effect of earthquake wave, the effect coming from circumrotate of globosity rotation, snowball function, cementation intermittent, the effect of biology, and so on.

綜合分析認(rèn)為震動(dòng)塌落一级片,、震動(dòng)拉伸變形、地震斷裂面的摩擦作用美女激情在线网址、氧化還原反應(yīng)和擴(kuò)散作用是環(huán)狀層理的主要成因黄色网站欧美内射，前三種成因的環(huán)狀層理往往與其他震成構(gòu)造伴生，可作為震積巖的良好標(biāo)志18岁禁止免费网站色秀视频。環(huán)狀層理的其他成因還包括：地震波傳播方式的影響日韩乱伦一区二区三区、地球自轉(zhuǎn)產(chǎn)生的渦旋的影響、"滾雪球"效應(yīng)国产模特性爱无码视频、間歇膠結(jié)作用以及生物成因等一本A片。

Analysis of their morphologies and features leads to the conclusi on that these structures might have been in connection with metazoan activity, bu t the possibility of their abiotic origin can not be ruled out.

通過(guò)對(duì)上述構(gòu)造形態(tài)和特征分析，這些構(gòu)造可能與后生動(dòng)物的活動(dòng)有關(guān)免费视频h片免费，但也不排除它們是非生物成因的可能曰韩美女乱婬免费视频网站。

It is another biogenic gemstone material and is formed by calcium skeleton of a coral insect branch-shaped along with very small thalassic animal population accretion.

是生物成因的另一種寶石原料亚洲欧美激情小说另类。它是珊瑚蟲(chóng)的樹(shù)枝狀鈣制骨架隨著極細(xì)小的海生動(dòng)物群體增生而形成。

Four main formations of loop bedding in Jiyang sub-basin were upper layers fall down in the process of earthquake, tautening distortion due to earthquake, the frication of earthquake-related surface of fault and the effect of redox and diffuse other formations of loop bedding comprise the effect of earthquake wave, the effect coming from circumrotate of globosity rotation, snowball function, cementation intermittent, the effect of biology, and so on.

綜合分析認(rèn)為震動(dòng)塌落免费在线观看视频被多人操、震動(dòng)拉伸變形奇米第四色888、地震斷裂面的摩擦作用、氧化還原反應(yīng)和擴(kuò)散作用是環(huán)狀層理的主要成因亚洲人成三级黄片观看，前三種成因的環(huán)狀層理往往與其他震成構(gòu)造伴生2019黄色超碰在线，可作為震積巖的良好標(biāo)志。環(huán)狀層理的其他成因還包括：地震波傳播方式的影響成人播放日韩在线播放AV、地球自轉(zhuǎn)產(chǎn)生的渦旋的影響欧美一级A片免费网站、&滾雪球&效應(yīng)、間歇膠結(jié)作用以及生物成因等狠狠久久精品伊人。

Ana lyses of the main shale gas basins in America show that gas shale reservoirs can be classified into thermal genetic type.

按天然氣成因?qū)㈨?yè)巖氣藏分為熱成因型国产A片一区二区三区视频网站导航、生物成因型和混合成因型，分析了美國(guó)具有代表性的典型氣藏伊人久久大香线蕉Aⅴ。

Furthermore, biogenic minerals in geological environments can be used as biosignatures, which help to retrieve the origin and evolution of life on Earth and other planets.

此外狠狠插时时拍，在地質(zhì)環(huán)境中生物成因的礦物還可以作為一種生物信號(hào)，用來(lái)重建地球和其他行星的起源和演化国产高清无码自拍。