四川宏承拍賣有限公司,為藏品強大的傳播效應向各位買家推薦經國家一級鑒定專家甄選的藝術珍品,為藏家牽線搭橋,讓千百件藝術珍品價值被發掘與重視,在拍賣會上得以高價成交。
Sichuan Hongcheng Auction Co., Ltd. recommends art treasures selected by national first-class appraisal experts to all buyers for the powerful communication effect of the collection, and bridges for collectors, so that thousands of art treasures can be explored and valued, and can be sold at a high price at the auction.
【名稱】頁巖石
【規格】重:131.8g
【類別】雜項
【Name】 shale
【Specification】Weight: 131.8g
【category】miscellaneous
頁巖(Shale),是一種沉積巖,成分復雜,但都具有薄頁狀或薄片層狀的節理,主要是由黏土沉積經壓力和溫度形成的巖石,但其中混雜有石英、長石的碎屑以及其他化學物質。用硬物擊打易裂成碎片。抵抗風化的能力弱,在地形上往往因侵蝕形成低山、谷地。頁巖不透水,在地下水分布中往往成為隔水層。形成于靜水的環境中,泥沙經過長時間的沉積,所以經常存在于湖泊、河流三角洲地帶,在海洋大陸架中也有頁巖的形成,頁巖中也經常包含有古代動植物的化石。
Shale, or Shale, is a sedimentary rock of complex composition, but with thin or laminar joints. It is mainly rock formed by clay deposition under pressure and temperature, but it is mixed with fragments of quartz, feldspar and other chemicals. Strike with something hard and easily break into pieces. The ability to resist weathering is weak, and often forms low mountains and valleys due to erosion on the topography. Shale is impermeable and often becomes a water-barrier in groundwater distribution. Formed in the environment of still water, sediment after a long time of deposition, so often exist in lakes, rivers and deltas, there is also the formation of shale in the continental shelf of the ocean, shale also often contains the fossils of ancient plants and animals.
此枚頁巖呈紅褐色,有光澤。This shale is reddish-brown and lustrous.
表層面有些許粗糙感。The surface is a little rough.