ML030 Tektites

玻璃隕石(雷公墨)Name Tektites
化學公式 high in SiO2 (>65 wt%)Chemical Formula high in SiO2 (>65 wt%)
莫氏硬度 五分之十Mohs scale of Hardness 5 out of 10 
隕石(來自希臘語τηκτόςtēktós,“熔融”)是由黑色,綠色,棕色或灰色的天然玻璃組成的礫石狀體,該天然玻璃是由隕石撞擊時噴出的地面碎屑形成的。這個名詞是由愛德華·蘇斯之子的奧地利地質學家弗朗茲·愛德華·蘇斯(Franz Eduard Suess1867-1941)創造的。 [1] [1]的大小範圍通常從毫米到厘米。毫米級​​隕石被稱為微隕石Description Tektites (from Greek τηκτός tēktós, “molten”) are gravel-sized bodies composed of black, green, brown, or gray natural glass formed from terrestrial debris ejected during meteorite impacts. The term was coined by Austrian geologist Franz Eduard Suess (1867–1941), son of Eduard Suess.[note 1][1] They generally range in size from millimeters to centimeters. Millimeter-scale tektites are known as microtektites
小挑戰 我們能在那裡找到玻璃隕石? 除南極洲和南美洲以外,在所有大陸上都知道Tektite 它們在整個地球歷史的不同時期成組形成,而在兩者之間沒有形成。 它們僅在確定的區域內(稱為散佈場)出現,並根據發現的位置賦予不同的名稱。Challenge Where can I find tektites? Tektites are known on every continent except Antarctica and South America. They formed in groups at widely different times over Earth history, with none being formed in between. They occur only within definite areas, called strewn-fields, and are given distinctive names according to where they are found.  

Reference

  1. https://en.wikipedia.org/wiki/Tektite

By 4A Wong Lik Kiu 29 on 18/4/2021