Three important conclusions are as follows:(1) the H2O content in garnet and omphacite can be up to 2000ppm and 3000ppm by weight respectively, indicating that they are significant carrier recycing surficial water into deep earth;(2) the heterogeneous distribution at the small scale of the H2O content and hydrogen isotopic ratios suggest that the whole subduction- exhumation process should be very fast;(3) the regular decrease of H2O content from rim to core within some garnet and omphacite grains indicates that hydrogen diffused out from mineral lattice during exhumation in response to sharp pressure decrease, and such hydrogen is expected to be involved in the early-stage retrograde metamorphism.

取得的主要科學(xué)認(rèn)識(shí)包括：(1)石榴石和綠輝石的結(jié)構(gòu)水含量可以分別高至2000ppm和3000ppm免费超碰在线观看，這表明它們是板塊俯沖過程中將地表水?dāng)y帶進(jìn)地球深部的重要載體v黄片視頻；(2)水含量和氫同位素組成表現(xiàn)出小尺度的不均一分布，說明板塊的俯沖和折返過程是十分快速的国产一级A∨国产片免费；(3)在板塊折返的早期操人妻免费视频，由于壓力的降低日韩毛片视频大全色网站，礦物中的H 會(huì)發(fā)生不同程度和尺度的擴(kuò)散，這是早期退變質(zhì)流體的重要來源色网站免费视频在线观看视频。

Several main results on the evolutions of the life and environment on early earth are summarized as follows:(1) the oxygenation of surface environment didn''t cease until a stable stage for 0.4Ga appeared after 1.6Ga;(2) compared to the isotopic compositions of kerogens and coexisted carbonates, the differences between two can effectively carrier the signals from local environments and bio-assemblages;(3) multiple isotopic relationships between kerogens and individual alkanes in Proterozoic samples were observed, which would depend on the specific biogeochemical processes;(4) repeated biogeochemical changes were observed accompanying Neoproerozoic glaciations, which suggesting that environmental rather than evolutionary forces were driving the biogeochemical changes;(5) the bio-radiations after Neoproterozoic glaciations were definitely suggested by molecular and isotopic data to be at the early Cambrian and after the middle of Doushantuo deposition with different triggers for them.

研究獲得以下重要認(rèn)識(shí)：（1）古元古代地表環(huán)境的氧化可能一直持續(xù)到中元古代早期(約1.6Ga)国产精品一二三四区色婷婷，而在此之后的4億年里則保持相對(duì)穩(wěn)定；（2）相對(duì)于傳統(tǒng)的干酪根和碳酸鹽的碳同位素組成多毛多水XXXXX日本，二者之差則能更好反映區(qū)域環(huán)境的演化特征国产精品毛片无码高清；（3）在元古代干酪根與單體烷烴類之間存在多種碳同位素組成關(guān)系；而其與不同的生物地球化學(xué)過程有關(guān)黄色网站视频无码；（4）全球海洋生物地球化學(xué)特征隨新元古代多次冰期出現(xiàn)循環(huán)波動(dòng)国内揄拍国内精品人妻不卡，這顯然為環(huán)境因子的驅(qū)動(dòng)作爱三级A片；（5）在新元古代大冰期之后一级毛片特级黄片，分子與同位素?cái)?shù)據(jù)顯示地球生命在陡山沱中后期和早前寒武紀(jì)出現(xiàn)兩次大輻射，然而兩次生命輻射的本質(zhì)卻是不同的亚洲欧美va在线播放69。

non leptonic decay：非輕子衰變

non isotopic carrier 非同位素載體 | non leptonic decay 非輕子衰變 | non linear field theory 非線性場(chǎng)論