周月

Chinese scientists have discovered multi-ple types of glass material in lunar samples re-trieved by the Chang e-5 mission， includingnatural fiberglass which has been found for thefirst time and could provide important supportfor future lunar base construction， according tothe Institute of Physics under the Chinese Acad-emy of Sciences.

The material， which includes spherical， el-lipsoidal and dumbbell- shaped glass beads aswell as colloidal items with a porous structureand sputtering material in fluid form， have alsobeen found.

By analyzing the morphology， composi-tion， microstructure and formation of the mate-rial， which originated from mineral melting andrapid cooling caused by meteorite impacts onthe lunar surface， researchers found there weremultiple ways the material was formed.

The glass with a higher length-to-diameterratio was formed under lower temperatures andspeed when a meteorite impacted the lunar sur-face， reflecting milder impact events comparedwith the formation of glass beads which have alower length-to-diameter ratio.

據(jù)中科院物理研究所消息，我國科研人員在嫦娥五號(hào)月壤樣品中發(fā)現(xiàn)了多種類型的月球玻璃物質(zhì)，其中包括首次發(fā)現(xiàn)的天然玻璃纖維，這可能為未來的月球基地建設(shè)提供重要支持。

此外，還發(fā)現(xiàn)了球狀、橢球狀、啞鈴狀等形狀的玻璃珠，以及氣孔構(gòu)造的膠結(jié)質(zhì)和流體形態(tài)的濺射物。

通過分析嫦娥五號(hào)月壤樣品中玻璃物質(zhì)的形態(tài)、成分、微觀結(jié)構(gòu)和形成機(jī)制，研究人員發(fā)現(xiàn)，玻璃材料的形成在月球表面有多種過渡方式。這些玻璃材料來源于頻繁的隕石撞擊造成的礦物熔化和快速冷卻。

隕石撞擊月球表面時(shí)，在較低的溫度和速度下形成了長徑比較高的天然玻璃纖維，與具有較低長徑比的玻璃珠的形成相比，這反映了月球表面較為溫和的微撞擊事件。