Obsidian is natural glass formed by volcanic lava that cooled too quickly.

黑曜石是天然形成的火山玻璃熔巖的冷卻太快。

He pulls a pocketknife and levers the rock free.

他掏出把折刀操国产熟女，把火山玻璃撬起在线观看永久免费A片三皮。

The distribution pattern also indicate radiolarian concentrations are strongly affected by the sediment type, radiolarian abundance and diversity is higher in the clay or mud than in fine sand, silt or coarse sand and decrease with the increase of terrigenous material. There is direct correlation between the radiolarian preservation and the amount of volcanic glass, the numerous volcanic ash shards have a significant influence on the radiolarian distribution pattern.

沉積物類型特別是其粒度和陸源物質(zhì)的含量極大地影響著放射蟲的分布，放射蟲的豐度和分異度明顯地隨沉積物粒度的增大和陸源物質(zhì)含量的增加而減腥蘸曰粕允悠怠视频二区欧美亚洲视频；同時(shí)，放射蟲的分布也顯示了與沉積物中火山玻璃含量的密切相關(guān)性成年人在线网站。

Volcanic ash in surface sediments around Zhongsha Islands of the South China Sea mainly include three kinds of volcanogenic detritus: that is, brown volcanic glass, colorless volcanic glass and volcanic scoria.

南海中沙近海表層沉積物的輕組分(粒徑為63~125μm)中主要包括有褐色火山玻璃久久经典黄色视频、無(wú)色火山玻璃以及火山渣等3種火山灰類型。

This volcanic glass has an almost total absence of sizable mineral crystals within the glass matrix.

這個(gè)火山玻璃已幾乎完全沒有可觀的礦物結(jié)晶玻璃基質(zhì)福利在线看。

A new type of chemical analysis has spotted the telltale signs of water molecules inside tiny beads of volcanic glass brought to Earth decades ago by the Apollo astronauts.

他們利用一種新的化學(xué)分析法亚洲热在线观看，在小塊火山玻璃珠里發(fā)現(xiàn)了水分子的明確跡象。玻璃珠是由"阿波羅"號(hào)宇航員于幾十年前帶回地球的强伦姧人妻一区二区。

The change of volcanic glasses in core sediment nearly is the same as that of surficial sediment, the layer number of volcanic glass is more and the contents are higher in the deep-sea basin.

菲律賓島弧火山帶2015超碰、南海深海盆火山噴發(fā)以及印尼島弧火山帶是南海火山玻璃主要源區(qū)，火山玻璃搬運(yùn)和沉積主要受臺(tái)風(fēng)国产女秘书免费视频、越赤道氣流和環(huán)流的影響和控制狼友视频观看。

Black obsidian is a volcanic glass created by the rapid cooling of silica-rich lava, obsidian was prized by early Maori for cutting and scraping tools and weapons and has been found at Maori occupation sites as far afield as Tiwai Pt in the south to the Kermadec islands in the north.

黑色黑曜石是火山玻璃創(chuàng)造的快速冷卻硅，豐富的火山熔巖偷拍无码日韩丝袜视频，黑曜石是珍貴的早期毛利人的切割和刮擦工具和武器在线精品国产制服丝袜噜，并已發(fā)現(xiàn)毛利占領(lǐng)地盤遠(yuǎn)在Tiwai鉑南海嘯群島北部。

TAS diagram for these three kinds of volcanogenic detritus, combined with variation diagram for Al2O, FeO(superscript *), MgO, CaO, Na2O, K2O vs SiO2, shows that there may exist bimodal volcanic activity in the north margin of the South China Sea, brown volcanic glass and colorless volcanic glass represent basic end member and acidic end member respectively, and crystallization differentiation is the main process for magma evolution.

在硅堿圖及Al2O3日韩Aⅴ片免费观看视频、FeO哪里有黄色网站可以看、MgO、CaO欧美口爆、Na2O久久久无码中文字幕一区二区三区、K2O對(duì)SiO2，的變化趨勢(shì)圖中可以判斷国产91手机在线，本區(qū)可能存在雙峰式火山活動(dòng)九九一级黄色，褐色火山玻璃代表中一基性端元国产91高潮流白浆在线播放，而無(wú)色火山玻璃代表酸性端元。無(wú)色火山玻璃與褐色火山玻璃具有共同的巖漿源區(qū)日本国产网曝视频在线观看，結(jié)晶分異可能是源區(qū)巖漿演化的主要方式aⅴ876视频。

Important natural geological analogues are volcanic glass and meteoric glass(anal-ogues of solidified mass), clay minerals (natural analogues of backfill material), iron meteorite and copper deposits (natural analogues of waste containers), natural nuclear reactors, uranium deposits, iron deposits containing Th and REE and contact zones between igneous rocks and other rocks (natural geochemical analogues of HLW repository).

目前已有的地質(zhì)類比研究對(duì)象主要有火山玻璃，隕石玻璃白色视頻在线发布，粘土礦物A片视频免费观看在线，鐵隕石，銅礦床www成年人视频，鈾礦床亚洲三级片啪啪，含含Th和REE的鐵礦床，天然核反應(yīng)堆和火成巖接觸帶等夜夜爽人人爽。

perlite：珍珠巖

珍珠巖(Perlite)系一種具有珍珠結(jié)構(gòu)的酸性火山玻璃質(zhì)熔巖,為典型的酸性巖漿噴出巖.多呈針狀、球狀雛晶結(jié)構(gòu)好黄的视频网站、塊狀構(gòu)造.由于其獨(dú)特的物理化學(xué)性質(zhì),可用于制作日用陶瓷亚洲欧美偷拍视频、建筑衛(wèi)生陶瓷,部分替代高嶺土、長(zhǎng)石等原料.筆者分析討論了珍珠巖在陶瓷坯體中的作用機(jī)理,

tuff porphyroid：凝灰火山錐

凝灰橙玄;玻璃 tuff palagonite | 凝灰火山錐 tuff porphyroid | 凝灰?guī)r道 tuff vent

scoria：火山渣

火山渣(Scoria)是一種火山噴發(fā)中經(jīng)過(guò)高溫燃燒噴出后冷卻形成的礦渣狀多孔輕質(zhì)材料,由孔隙人人操人人看人人搞、火山玻璃和礦物組成. 孔隙是由于泡沫破裂真人版AV黄色网站、氣體逃逸而形成. 火山渣通常為黑色、深灰色A级毛片无码免费、紅色和棕色. 自然形態(tài)以粗粒狀火山堆積形式存在,

shard：火山玻璃刺

火山玻璃 volcanic glass | 火山玻璃刺 shard | 火山塵 volcanic dust

volcanic glass：火山玻璃

黑曜石是一種火山玻璃(volcanic glass),它是由一種花崗巖經(jīng)火山熔融作用,未經(jīng)冷卻而形成晶體. 輕石(pumice)是另一種常在火山地帶可找到的類似玻璃物質(zhì),其密度很低,而且內(nèi)部充滿了小氣泡,因?yàn)槠浔旧肀闶怯苫鹕健溉蹘r氣泡」凝固而成.

volcanic glass：[地]火山玻璃,松脂石

coalbox 煤箱, 發(fā)黑煙的炸彈 | volcanic glass [地]火山玻璃,松脂石 | narrow pass 羊腸小道

volcanic glass：火山玻璃 同

Volcanic chrysolite 火山橄欖石 同VesuVianite | Volcanic glass 火山玻璃 同obsidian | Volcanic laVa 火山熔巖 同laVa

Piece of black, volcanic glass：一塊黑色的火山玻璃石

At the base of that wall, there's a rock that has no earthly business in Maine.|在墻角下... | Piece of black, volcanic glass.|一塊黑色的火山玻璃石 | Something's buried under it I want you to have.|下面埋...

vitric pyroclast：[火山]玻屑

vitreous luster 玻璃光澤 | vitric pyroclast [火山]玻屑 | vitriclastic texture 玻璃質(zhì)碎屑結(jié)構(gòu)

pele's hair：火山玻璃毛

"斑蘇英安巖","peleeite" | "火山玻璃毛","Pele's hair" | "火山玻璃淚滴(玄武玻璃粒)","Pele's tears"