地質與礦物 – 國立自然科學博物館 2017科學攝影

鬼斧神工－狄樂平

sflower77 — Tue, 20 Jun 2017 07:44:54 +0000

類別

地質與礦物

參賽者

狄樂平

作品名稱

鬼斧神工 Natural Craftsmanship

科學圖說 Scientific introduction

位於地底深處的岩層，漸漸地暴露到地表時，由於壓力減小，岩石產生了裂痕，因此岩石和空氣與水的接觸面積增加，會沿著岩石的節理進行風化作用。若水中或岩石內含有鐵的成分，在長期風化作用下，鐵質會氧化生成氧化鐵，顏色也轉為褐色或咖啡色。氧化作用越完全，風化紋的顏色也越深。加上受海水長期淘洗而剝落，地層擠壓出縱橫交錯的裂縫，便生成彷彿鬼斧神工般的奇岩異石。

When rock strata that were once deep underground are gradually exposed, the pressure decreases creating fissures. This increases the contact area of the rocks with air and water along the joint, leading to erosion. If the water or rocks contain iron, over a long period of weathering the iron oxidizes to become ferric oxide. This leads to a change in color to brown. The more complete the oxidation, the deeper are the colors of the patterns. Due to the long term effects of sea water, a network of fissures has formed along the surface creating an intricate work of natural craftsmanship.

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億萬年的仰望－王征

sflower77 — Tue, 20 Jun 2017 07:42:30 +0000

類別

地質與礦物

參賽者

王征

作品名稱

億萬年的仰望 Looking Upon Billions of Years

科學圖說 Scientific introduction

庫車大峽谷位於新疆天山南麓的庫車縣附近，南北走向，全長5公里，最寬處53公尺，最窄處僅0.4公尺，只容1人躬身通過。億萬年的地質作用和風雨侵蝕，造就了庫車大峽谷獨特的地貌景觀。紅褐色的岩石在正午光線的照射下，顯露出獨特的魅力和神秘的氛圍。在峰迴路轉的深處，人類在自然面前顯得無比渺小，那整齊的刀刻痕跡，是大自然留下的永恆力量。

Kuqa Gorge is located near the southern foothills of Tian Shan in Kuqa County, Xinjiang. It runs north to south for five kilometers, and has a maximum width of 53 meters. At its narrowest point it is only 0.4 meters. Billions of years of geological process and erosion by wind and rain have created the unique landscapes. The gorge is at its most beautiful when the sun shines on the reddish brown rocks at high noon. Along the winding paths in the deepest part of the gorge it is easy to feel insignificant in the face of Nature. The neat cuts are evidence of the everlasting power of Nature.

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