Mid-Pleistocene microtektites were recovered from the interval between core depth 386.12 and 386.38 mcd but concentrated in a 3 cm-thick layer between ...

研究結(jié)果表明，中更新世撞擊事件對(duì)環(huán)境的影響很可能只是小幅度和短時(shí)間的很污的毛片视频网址一区，盡管引起了南海表層海水溫度約 2°C的下降及其相應(yīng)的δ1 8O的加重、浮游有孔蟲(chóng)冷水種含量的上升和暖水種含量的減少myfamily欧美性爱视频，但沒(méi)有造成海水穩(wěn)定同位素重大偏移和全球氣候的災(zāi)難性影響，也沒(méi)有引起浮游有孔蟲(chóng)在生物演化上的變化日韩精品每天在线更新。

Total 28 samples were collected from the section of 385.8—386.4 mcd at ODP Site 1144 (20°3.18′N(xiāo) , 117°25.14′E , water depth 2 037 m), northern South China Sea, and microtektite, planktonic foraminifera and stable isotope analyses were performed in order to evaluate the effect of the mid-Pleistocene impact on microplanktonic communities and environment.

本文對(duì)采自南海北部 ODP114 4站(2 0°3.18′N(xiāo)在线观看av的网址，117°2 5 。14′E乱性交小说视频，水深 2 0 37m) 385 欧美一区二欧精品视频。8— 386 。4 m層段的 2 8個(gè)沉積物樣品進(jìn)行了微玻隕石中年夫妇露脸视频、浮游有孔蟲(chóng)及其同位素分析欧洲一级A片大全，以評(píng)估中更新世撞擊事件對(duì)環(huán)境的影響。微玻隕石見(jiàn)于孔深 386 国产迷系列视频在线观看应用。12— 386 一级黄片久久99。38m，而集中分布在 386 jjzzjjzz。2 2— 386 三级免费操逼视频。2 5 m厚約 3cm的地層中欧美大黑粗极品黑白配。

Impact event ; microtektite ; planktonic foraminifera ; stable isotope ; Mid-Pleistocene ; South China Sea

撞擊事件黄色无码在线视频；微玻隕石日韩一级一区；浮游有孔蟲(chóng)；同位素；中更新世黄色AA视频；南海

Impact event ; microtektite ; paleomagnetism ; stable isotope ; mid-Pleistocene ; the South China Sea

撞擊事件看亚洲BBBwBBBwBBB；微玻隕石黄色一级毛片网站AAAAAAAAAA；古地磁；同位素；中更新世；南海

For decades, as the representative of the late Pleistocene human in east Asia, the Upper Cave skulls have played an important role in research on the origins of modem Mongoloids and American Indians.

多年來(lái)九九视频九九视频在线，山頂洞人作為東亞地區(qū)更新世晚期人類(lèi)的代表，在研究東亞地區(qū)現(xiàn)代蒙古人種及美洲印第安人起源方面發(fā)揮著重要作用。

Results Flatland species had significantly larger northward shifts at southern range edges than did mountain-dwelling species from the Late Pleistocene to the present.

結(jié)果平地種類(lèi)比山住宅種類(lèi)從晚更新世對(duì)禮物有顯著更大的北向轉(zhuǎn)移在南部的范圍邊緣。

Any of numerous extinct elephants widely distributed in the Pleistocene; extremely large with hairy coats and long upcurved tusks.

更新世時(shí)期眾多的廣布廣泛的象亚洲三级观看，已滅絕；體型龐大欧美A片精品、體表多毛激情综合五月天丁香婷婷、象牙長(zhǎng)而向上彎曲。

So far, it has led to the discovery of the remains of Sinanthropus pekinensis, who lived in the middle Pleistocene era, along with various objects, and the remains of Homo sapiens sapiens, dating as far back as 18,000 to

到目前為止九九视频在线观看A片国产，科學(xué)家已經(jīng)發(fā)現(xiàn)了中國(guó)猿人屬北京人的遺跡欧美一区精品在线，他們大約生活在中更新世時(shí)代，同時(shí)發(fā)現(xiàn)的還有各種各樣的生活物品又大又硬视频，以及可以追溯到公元前18波罗一级黄色视频，000年到11，000年的新人類(lèi)的遺跡91亚洲国产在人线播放午夜。

Through the analysis and contrast between HM core and Dh core, combined with the data of AMS14C, six pollen assemblages were ploted Out. At the mean time, six stages about the vegetation change and climate fluctuation were rebuild. In addition, there were three sub-assemblages ploted out in the Atlantic period, Sub-Boreal period and Sub-Atlantic period, which reflected the less vibration of the large-scale climatic change. Pollen assemblage dominated by Concentricystes in the hard and green clay of late Pleistocene can make it sure that the hard green clay layer was formed by water.

通過(guò)對(duì)上海地區(qū)鶴鳴孔和東海1井兩個(gè)鉆孔進(jìn)行孢粉分析鑒定和對(duì)比免费无码在线小视频，結(jié)合AMS14C測(cè)年等資料在线观看一区二区三区Av，劃分出了6個(gè)孢粉組合帶，恢復(fù)了本區(qū)的植被演化和氣候波動(dòng)的6個(gè)階段天天天色色色，對(duì)鶴鳴孔的大西洋期欧美熟女色视频、亞北方期和亞大西洋期各劃分出了兩個(gè)孢粉組合亞帶，反應(yīng)了大氣候環(huán)境下氣候的次一級(jí)波動(dòng)国内乱人伦中文视频在线，在晚更新世晚期的硬綠色粘土中還發(fā)現(xiàn)了以環(huán)紋藻為主的孢粉組合717dyw，從孢粉學(xué)角度上證實(shí)了這一硬綠色粘土層&水成沉積&的觀點(diǎn)。

The mountains had not reached the height of the snowlines in the early Pleistocene; so glaciers did not develop then.

提出在早更新世時(shí)国精品视频在线观看，由於山體未達(dá)到當(dāng)時(shí)冰川發(fā)育的雪線(xiàn)高度黄片二区三区18禁，所以未發(fā)育冰川。