All posts by idbeditor

RM006 Garnet Mica Schist

Class: 5C Name: Yam Wing Yan Year: 2017 – 2018   地質年代:(化石) (岩石) 前寒武紀,古生代   化學組成, 鍵及結構:(礦物)       Geological Age: (Fossil) (Rock) Precambrian-Paleozoic   Chemical composition, bonding and structure: (Mineral)     形成:(岩石) (礦物) 高溫會使岩石晶體融化並重新結晶成新的岩石。 在聚合性板塊邊緣環境中,熱和化學活動將頁岩和泥岩的粘土礦物轉化為板狀雲母礦物,如白雲母,黑雲母和綠泥石。 定向壓力將轉換中的粘土礦物從它們的隨機的排列推到平行排列中,其中板狀礦物的長軸垂直於壓縮力的方向取向。 礦物的這種轉變標誌著岩石不再是沉積而是變質岩石。   原生物:(化石)             Formation:(Rock) (Mineral) High temperature can make rock crystals melt and recrystallize into new rock. In the convergent plate boundary environment, heat and chemical activity transform the clay minerals of shales and mudstones into platy mica minerals such…

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RM004 Connemara Marble

Class: 5C Name: Wong Hing Yiu Year: 2017 – 2018   地質年代:(化石) (岩石) 超過6億年 化學組成, 鍵及結構:(礦物) 蛇紋石,透輝石,綠泥石,方解石和白雲石微小晶體 Geological Age: (Fossil) (Rock) Over 600 million years Chemical composition, bonding and structure: (Mineral) Tiny crystals of serpentine, diopside, chlorite, calcite, and dolomite 形成:(岩石) (礦物) 大理石是石灰石在壓力下加熱時形成的。康尼馬拉大理石由6億年前沉積在淺海原始海域的沉積物形成。 山脈形成過程中產生的強烈溫度和壓力使它變形了。   原生物:(化石)   Formation:(Rock) (Mineral) The marble itself is formed when limestone is heated under pressure. Connemara marble was formed from sediment deposited in a shallow primal sea over 600 million years ago. It was transformed by the intense temperatures and…

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RM003 Biotite Gneiss

Class: 5C Name: Heather Wai Year: 2017 – 2018   地質年代:(化石) (岩石) 35億年 化學組成, 鍵及結構:(礦物)       Geological Age: (Fossil) (Rock) 3.5 billion years Chemical composition, bonding and structure: (Mineral)     形成:(岩石) (礦物) 高等級意味著變質作用發生在高壓和320攝氏度或更高的溫度。礦物預變質作用中存在的任何水體隨著溫度的升高而經常喪失,從而形成一般難以溶解於水中的硬質變質岩。區域意味著變質條件發生在大的地理區域,並且包括差異(或剪切)應力,這有助於形成稱為葉理的分層結構。片麻岩顯示出一種獨特的葉理,稱為片麻狀帶,這是比大多數變質岩顯示的更厚的葉面帶。這是幫助區分片麻岩與其他葉狀岩石的特徵之一。礦物學上,片麻岩往往包括石英,長石,雲母,綠泥石和其他粘土礦物。有些還含有嵌在岩石基質中的較大晶體,最常見的是石榴石,黃玉和綠柱石礦物。   原生物:(化石)             Formation:(Rock) (Mineral) High grade means that the metamorphism occurs at high pressures and at temperatures at or above 320 degrees Celsius. Any water that is present in the minerals pre-metamorphism is frequently lost as the temperature increases, resulting in hard metamorphic…

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RM002 Biotite Gneiss

Class: 5C Name: Tang Chung Yan Joanne Year: 2017 – 2018 地質年代:(化石) (岩石) Proterozoic 化學組成, 鍵及結構:(礦物)       Geological Age: (Fossil) (Rock) 元古宙 Chemical composition, bonding and structure: (Mineral)     形成:(岩石) (礦物) 鐵,鎂,鋁,矽,氧和氫形成薄片,被鉀離子弱結合 原生物:(化石)             Formation:(Rock) (Mineral) Iron, magnesium, aluminium, silicon, oxygen, and hydrogen forming a sheet, weakly binded by potassium ion Living Specimens: (Fossil)               特性: 1.       它具有非常完美的基礎劈理。 2.       它具有單斜晶系。 3.       它呈棕色或黑色呈綠色,風化時甚至呈黃色。 4.       它在劈理面上具有玻璃般的光澤。 5.       當黑雲母分成薄片時,薄片是靈活的,但會在嚴重彎曲時斷裂。          …

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RS053 Aqua Gravel

Class: 5C 17 Name: Summie Sit Year: 2017 – 2018 地質年代: 沒有資料       Geological Age: Unknow Structure: rock fragment (sand) (clay) 形成: 由於大岩石的風化和侵蝕作用,岩石或石英的較弱部分被風化,並且水的波浪或運動導致這些岩石碎片的積聚,並沉積在沙灘上,河床下, 小溪床或海床。 原生物:沒有             Formation: Due to the weathering and erosion processes of a big rock, the weaker part of the rock or quartz are being weathered and the waves or movement of water lead to the accumulation of the theses rock fragment and are deposited on beach, under the river bed, stream bed or sea…

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RS052 Concretion

Class: 5C Name: Audrey Davison Year: 2017 – 2018   地質年代:冰河世紀化學組成, 鍵及結構 :礦物顆粒 – 石英或長石。沉積,變質或火成岩碎片。 石英岩,砂岩,石灰岩,花崗岩,玄武岩和片麻岩的碎屑特別常見。 將大塊碎石結合在一起的基質可以是沙子,泥土和化學水泥的混合物。 Geological Age: Ice Age Chemical composition, bonding and structure: Mineral particles – quartz or feldspar. Sedimentary, metamorphic, or igneous rock fragments. Clasts of quartzite, sandstone, limestone, granite are especially common. The matrix that binds the large clasts together can be a mixture of sand, mud, and chemical cement. 形成:聚集形式的圓形碎屑堆積沉積物。需要強大的波浪和分解。這些條件只能在極端潮流或波浪作用時才會遇到。然而,在這些時間裡,地球上的大部分沉積物都會被移動和沈積。原生物:砂岩 Formation: Conglomerate forms where sediments accumulate. Strong winds and decomposition are needed. These conditions might only be met during times of extreme flow or wave action. However, it…

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RS051 Pisolite

Class: 5C Name: Chiu Yuen Tung Year: 2017 – 2018 地質年代:(化石) (岩石) 化學組成, 鍵及結構:(礦物)       Geological Age: (Fossil) (Rock) Chemical composition, bonding and structure: (Mineral)     形成:(岩石) (礦物) 由藍綠藻產生的微晶灰殼,潮間帶和潮上帶(平均高潮線與最大漲潮線之間的區域)沉澱的碳酸鹽,鈣質和洞穴珍珠所形成的 不規則的微型晶體與纖維狀方解石一層層地圍着核 原生物:(化石)             Formation:(Rock) (Mineral) irregular concentric micritic to fibrous calcite layers, form by micrite encrustations produced by blue-green algae, intertidal and supratidal precipitation of carbonate, caliche, cave pearls, about a nucleus Living Specimens: (Fossil)               特性: 由凝固的顆粒組成        …

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RS050 Hematite

Class: 5C Name: Cheung Po Ming Year: 2017 – 2018   地質年代:不詳 化學組成, 鍵及結構:氧化鐵 Geological Age: / Chemical composition, bonding and structure: Fe2O3 形成:它形成的地方要有靜止的水或礦物溫泉。 礦物可以從水中沉澱出來,並在湖底,泉水或其他靜止水中分層收集。 原生物:/   Formation: It formed in places that can have still standing water or mineral hot springs. Mineral can precipitate out of water and collect in layers at the bottom of a lake, spring, or other standing water. Living Specimens:/ 特性:赤鐵礦比純鐵更硬,但更易碎。其中一些是磁性的。 Properties: Hematite is harder than pure iron, but much more brittle. Some of them are magnetic. 用途:赤鐵礦的顏色適合用作顏料和用於書寫。 它也用於藝術品,例如凹版雕刻寶石的製作。 Application:…

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