Category Archives: Rock

RI008 Gabbro

Class: 4E 04 Name: Dennis Cheng Year: 2014 – 2015 地質年代:(rock) 化學組成, 鍵及結構: 不詳   Geological Age: (rock) Chemical composition, bonding and structure: Unknown   形成:輝石,斜長石,角閃石和橄欖石 原生物:不詳 輝長岩主要由入侵性火山作用形成,岩漿沿地殼裂縫上升,它冷卻並凝固成不同的礦物。是由輝石,斜長石,角閃石和橄欖輝長岩組成的。 這組礦物由架狀矽酸鹽組成的。在普通的長石主要元素的組合物可以表現在三個端元計算: 鉀長石(K-SPAR) 鈉長石 鈣長石 Formation: pyroxene, plagioclase , amphibole and olivine Living Specimens: Unknown Gabbro is mainly formed by intrusive vulcanicity. Magma rise along the crack in the crust. It cools and solidifies into different minerals. The composition of pyroxene, plagioclase, amphibole and olivine form gabbro. Feldspar consists of framework tectosilicate. Compositions of major elements in common…

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RI007 Gabbro(Big Feldspar)

Class: 4E 04 Name: Dennis Cheng Year: 2014 – 2015 形成:輝石,斜長石,角閃石和橄欖石 原生物:不詳 輝長岩主要由入侵性火山作用形成,岩漿沿地殼裂縫上升,它冷卻並凝固成不同的礦物。是由輝石,斜長石,角閃石和橄欖輝長岩組成的。 這組礦物由架狀矽酸鹽組成的。在普通的長石主要元素的組合物可以表現在三個端元計算: 鉀長石(K-SPAR) 鈉長石 鈣長石 Formation: pyroxene, plagioclase , amphibole and olivine Living Specimens: Unknown Gabbro is mainly formed by intrusive vulcanicity. Magma rise along the crack in the crust. It cools and solidifies into different minerals. The composition of pyroxene, plagioclase, amphibole and olivine form gabbro. Feldspar consists of framework tectosilicate. Compositions of major elements in common feldspars can be expressed in terms of three endmembers: 1.Potassium-Feldspar (K-spar) 2.Albite 3.Anorthite   特性:…

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RI006 Essexite(Nepheline Gabbro)

Class: 5E Name: Chau Tsz Lam Year: 2014 – 2015 地質年代:(化石) (岩石) 化學組成, 鍵及結構:(礦物) 不詳 Geological Age: (Fossil) (Rock) Chemical composition, bonding and structure: (Mineral) Unknown 形成:(岩石) (礦物) 原生物:(化石) 鹼性玄武岩鹼性火成岩,它含有足夠的鉀有利於生產鉀長石 Formation:(Rock) (Mineral) Living Specimens: (Fossil) Essexite is an alkaline igneous rock equivalent to an alkaline basalt. The presence of nepheline, a feldspathoid mineral, indicates that essexites are silica undersaturated. The presence of orthoclase indicates that it contains sufficient potassium to favor production of orthoclase over microcline or potassic oligoclase. Essexites are generally rich in aluminium, alkalis (sodium and calcium), potassium (>3% K2O), LILE-enriched…

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RI005 Bytownite Basalt

Class: 5E Name: Chau Tsz Lam Year: 2014 – 2015   形成:(岩石) (礦物) 原生物:(化石) 不詳 Formation:(Rock) (Mineral) Living Specimens: (Fossil) Basalt magma is formed by the decompressive melting of the earth’s mantle, which is then released by volcanoes in the form of lava. It is found not only on earth, but o other planets   特性: 通常是淺奶油色被稱為倍長石。這些倍長石的晶體可以容易地用肉眼看到的樣品中。 Properties: Bytownite basalt is another variation of the common Basalt rock. Basalt tends to to be a dark, fine, crystalline igneous rock and has a number of different…

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RI004 Biotite Granite

Class: 5E Name: Chan Shui Ching, Crystal Year: 2014-2015 形成: 原生物: 它是由入侵性火山作用的過程中形成的。當裂縫發展到地殼,時間流逝後, 它延伸到地幔。岩漿通過裂縫上升。途中,它冷卻和凝固。在冷卻過程中,結晶發生在岩石上。礦物的集合體形成的岩石,被稱為火成岩。   Formation: Living Specimens: It is formed during the process of intrusive vulcanicity. When cracks develop in the crust. After time passes, it extends to the mantle. Magma rises up through the cracks. On its way, it cools and solidifies deep within the earth’s surface. During the cooling process, crystallization takes place in rocks. The aggregate of minerals forms rock, called igneous rock. 特性: 它包含三個礦物質:雲母(黑),石英(灰色)和長石(粉紅色)。因為它們是形成在地球表面深處,需要緩慢冷卻過程。正因為如此,它們具有比噴出岩更多的時間發展成粗粒度的大小。 Properties: It contains three minerals: mica(black), quartz(grey)…

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RI003 Basalt with Augite Crystals

Class: 5E Name: Chan Shui Ching, Crystal Year: 2014-2015 化學組成, 鍵及結構:玄武岩的主要成分是矽鋁酸鈉或矽鋁酸鈣,二氧化矽的含量大約是45-52%,還含有較高的氧化鐵和氧化鎂 Chemical composition, bonding and structure: Basalt is an igneous rock that contains more than 45 and less than 52% SiO2 and less than five percent of total alkalies (K2O + Na2O)3 形成: 原生物:它是透過火山爆發而形成的。當裂縫到達岩漿,岩漿的壓力被釋放。岩漿通過裂隙上升到地表,發生火山爆發。不同礦物冷卻並凝固, 聚合而形成玄武岩。 Formation: Living Specimens: It is formed during the process of extrusive vulcanicity. When cracks reach the magma, pressure of magma is released. Magma rises through the cracks to the earth surface and extrusive vulcanicity occurs. Different minerals cools and solidifies.…

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RI002 Basalt

Class: 4E Name: Chan Ngo Yiu , Yoyo Year: 2014 – 2015   地質年代:不詳 化學組成, 鍵及結構:(礦物) 礦物成份主要由基性長石和輝石組成 Geological Age: Unknown Chemical composition, bonding and structure: (Mineral) Mineral composition mainly by mafic composition of feldspar and pyroxene 形成: 原生物: 玄武岩是由火山噴發出的岩漿冷卻後凝固而成的一種致密狀或泡沫狀結構的岩石。它在地質學的岩石分類中,屬於岩漿岩(也叫火成岩)。岩漿岩分侵入岩和噴出岩兩種。其中侵入岩是地下岩漿在内力作用下侵入地殼上部,岩層冷卻凝固而形成岩石,它的礦物結晶顆粒較大,代表岩石有花崗岩。噴出岩是地下岩漿在内力作用下,沿地殼薄弱地帶噴出地表冷凝而形成岩石,它的礦物結晶顆粒細小,有的有流紋或氣孔構造,代表岩石就是玄武岩。   Formation: Living Specimens: Basalt is volcanic eruption after cooling and solidification of magma made ​​of a dense foam-like or rock-like structure. It geology rock classification, belong to the magmatic rocks (also called igneous rocks). Two points intrusive magmatic rocks and extrusive rocks. Among them is…

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RI001 Andesite

Class: 4E Name: Chan Ngo Yiu , Yoyo Year: 2014 – 2015   形成:石英、長石、角閃石、輝石   山岩漿起源於大洋板塊俯沖於大陸板塊之下時﹐洋殼及其上覆沉積物受高溫﹑高壓影響﹐轉變爲角閃岩﹑石英榴輝岩﹐再經部分熔融可形成安山岩漿﹔此岩漿上升進入地幔楔形區後可與地幔岩反應成輝石岩﹐再經部分熔融﹐能形成安山岩漿﹔大洋沉積物中水及水化的大洋殼中水﹐在俯沖到一定深度時脱出﹐上升至上覆的地幔楔形區﹐使地幔富水﹐富水地幔部分熔融能形成安山岩。 Formation: Quartz, feldspar, hornblende, pyroxene   When Hill magma originated in oceanic plate subduction beneath the continental plate, the oceanic crust and overlying sediments affected by temperature , high pressure, into amphibolite , quartz eclogite, and then by partial melting to form andesite pulp; This magma after rising into the mantle wedge may react with mantle rocks into pyroxenite, and then by partial melting to form andesite pulp; ocean…

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