標(biāo)題: Titlebook: Early Precambrian Basic Magmatism; R. P. Hall,D. J. Hughes Book 1990 Blackie & Son Ltd 1990 chemistry.classification.formation.geochemistr [打印本頁] 作者: 去是公開 時間: 2025-3-21 16:04
書目名稱Early Precambrian Basic Magmatism影響因子(影響力)
作者: 出價(jià) 時間: 2025-3-21 22:35
eProcurement in der ?ffentlichen Logistikoleiites are chemically distinct from their more modern counterparts and they are the most abundant magma type represented in greenstone belts, and thus they warrant significant attention. Several magma types are not discussed in this chapter since, although they were erupted during the Archaean, th作者: overrule 時間: 2025-3-22 00:42 作者: 贊成你 時間: 2025-3-22 07:12 作者: 氣候 時間: 2025-3-22 09:52
https://doi.org/10.1007/978-3-658-09447-8brian these suites comprise komatiites, komatiitic basalts (previously known as basaltic komatiites), siliceous high-Mg basalts (SHMB), norites and the parental magmas of the noritic portions of major layered, Bushveld-type intrusions (’U’-type magmas). However, of these, the petrology of norites ha作者: 合同 時間: 2025-3-22 13:17
Datengrundlage und Untersuchungsdesign,ng in the early mantle. Much of our knowledge is based on studies of the present mantle but the early Precambrian geological record, and in particular the sensitivity of the magmatic record to the thermal and chemical state of the mantle, places constraints on mantle evolution. These constraints, in作者: 合同 時間: 2025-3-22 18:36
https://doi.org/10.1007/978-3-658-15597-1has evolved from a distant object of curiosity to a natural laboratory for planetary geology. Because of the lack of tectonic recycling and chemical weathering, fresh rocks more than 4.0 Ga old still exist on the Moon and these rocks yield invaluable information about the early history of the solar 作者: 吹牛需要藝術(shù) 時間: 2025-3-22 22:27
https://doi.org/10.1007/978-3-658-03302-6, Cr, the platinum group elements (PGE), Cu, Au and asbestos are found in direct association with mafic and ultramafic magmatism. This chapter first considers Archaean metallogenesis associated with volcanic suites and reviews the classical association between Fe–Ni sulphide mineralisation and komat作者: 膽大 時間: 2025-3-23 01:34 作者: 入會 時間: 2025-3-23 06:32 作者: NUL 時間: 2025-3-23 11:17 作者: 哀悼 時間: 2025-3-23 15:51
Klaus Kocks,Susanne Knorre,Jan Niklas Kockshronologically from NE (Archaean) to SW (mid to late Proterozoic). It was formed by crustal accretion onto the Saamian (3.1–2.9 Ga) nucleus during the Lopian (2.9–2.6 Ga), Svecofennian (1.9–1.8 Ga) and Gothian (1.7–1.5 Ga) orogenies. The Sveconorwegian orogeny was mainly a period of late Proterozoic作者: 小平面 時間: 2025-3-23 21:16
https://doi.org/10.1007/978-3-642-27981-2arly important in the early stages of planetary evolution. From the results of experimental and geochemical studies, it is clear that basaltic magmas can be regarded as first-order differentiation products of mantle melting, hence they (and komatiitic magmas) play an important role as probes of chem作者: 教育學(xué) 時間: 2025-3-24 01:10 作者: opportune 時間: 2025-3-24 03:57
?ffentlicher Personennahverkehrthese rocks is not very comprehensive, they range from crystalline basement rocks as old as 3.8 Ga in the Singhbhum craton to widespread supracrustal sequences, and dykes intruding crystalline basement which are only 0.9 Ga old. Archaean and early Proterozoic igneous and meta-igneous rocks comprise 作者: Interferons 時間: 2025-3-24 07:55 作者: floodgate 時間: 2025-3-24 12:11 作者: 噱頭 時間: 2025-3-24 18:53 作者: 休戰(zhàn) 時間: 2025-3-24 19:44
978-94-010-6666-2Blackie & Son Ltd 1990作者: Stress 時間: 2025-3-25 02:39
http://image.papertrans.cn/e/image/300800.jpg作者: olfction 時間: 2025-3-25 04:45
,Modellkomplex III – Das digitale Zeitalter, in the early Precambrian compared with what we see today. Understanding the mechanisms and details of the various processes must bring a clearer insight into the evolution of the mantle and thus to the processes which produce basic magmas — both old and modern. It also contributes to our knowledge 作者: 博愛家 時間: 2025-3-25 08:01
https://doi.org/10.1007/978-3-322-87749-9afic units and may indicate a distinctive high-Si, high-Mg parental magma. High K, LREE and Zr contents in these magmas raise questions about an upper crustal component, either assimilated during magma ascent or incorporated into the source mantle by the earlier subduction of sediments.作者: ANT 時間: 2025-3-25 15:26
https://doi.org/10.1007/978-3-658-09447-8at they occur most obviously as cumulates in large layered intrusions. However, the abundance of early orthopyroxene suggests that they are not derived simply from tholeiitic magmas, in which orthopyroxene is not a significant low pressure liquidus phase. Norites warrant a little more emphasis here 作者: cinder 時間: 2025-3-25 17:04 作者: Irksome 時間: 2025-3-25 23:54 作者: 被詛咒的人 時間: 2025-3-26 00:46 作者: Original 時間: 2025-3-26 06:53 作者: 典型 時間: 2025-3-26 10:44 作者: etidronate 時間: 2025-3-26 13:37 作者: Influx 時間: 2025-3-26 19:14 作者: 現(xiàn)存 時間: 2025-3-26 21:52 作者: grieve 時間: 2025-3-27 04:46 作者: tenosynovitis 時間: 2025-3-27 08:49 作者: 串通 時間: 2025-3-27 10:21 作者: 某人 時間: 2025-3-27 17:02
Early Precambrian basic rocks of Australiar within granitegreenstone terranes, known in Australia as ‘blocks’. A considerable thickness of Archaean basalt also occurs in the gently folded Hamersley Basin (Pidgeon, 1984; Blake and Groves, 1987). Post-tectonic suites of dykes and sills occur commonly both in the mobile belts and in the Archae作者: insincerity 時間: 2025-3-27 19:49
Early Precambrian basic rocks of Africaional literature. This is not to underrate the efforts of all those geologists who have puzzled over the problems of the Archaean in Africa, but is done to enable the reader to access the available information.作者: 誹謗 時間: 2025-3-27 22:57 作者: 燦爛 時間: 2025-3-28 02:06 作者: 許可 時間: 2025-3-28 07:17 作者: aerobic 時間: 2025-3-28 13:35 作者: Ambiguous 時間: 2025-3-28 18:25
Lunar magmatismsystem that is unavailable on Earth. Furthermore, understanding the Moon’s formation and early evolution helps increase our knowledge of the Earth, because the two bodies appear to have formed close together in space and time.作者: 把…比做 時間: 2025-3-28 19:14
Early Precambrian basic rocks of the USApabyssal and volcanic basic components, ranging in age from early to late Archaean. In addition, early to mid-Proterozoic hypabyssal basic intrusions occur in virtually all of the Archaean cratonic regions, while early to mid-Proterozoic metavolcanic suites occur throughout western central USA (Condie, 1986).作者: ETHER 時間: 2025-3-28 23:10
Early Precambrian basic rocks of Chinaical composition, chemical evolution and physical conditions of planetary mantles. By contrast, granitic magmas may be considered as second or higher-order differentiation products and they play key roles in the study of continental development and accretion, crustal recycling, particular trace element concentration processes and mineralisation.作者: 鼓掌 時間: 2025-3-29 04:29 作者: 懸崖 時間: 2025-3-29 10:12
https://doi.org/10.1007/978-3-658-03302-6volcanic suites. A review of the mineralisation associated with basic intrusive complexes is also presented, focusing on the chromite and PGE mineralisation of the major early Precambrian layered intrusions, and in particular the Bushveld, Stillwater and Great Dyke complexes.作者: PUT 時間: 2025-3-29 13:00
?ffentlicher Personennahverkehrclei in the Indian Shield. Detailed geochemical data are rather sparse for many of these occurrences, and this review concentrates on those regions (primarily the Dharwar craton; Figure 15.1) for which a reasonable body of petrological and chemical data are available.作者: neologism 時間: 2025-3-29 15:52
https://doi.org/10.1007/978-3-658-22059-4 (2.7Ga), Transamazonian (2.0Ga), Urua?uano–Espinhago (1.5–1.1 Ga) and Brasiliano (1.1–0.5 Ga) Cycles (see Wernick, 1981), during which the Precambrian crust progressively accreted. It has been estimated that 80% of the Precambrian of South America had formed by the end of the Transamazonian (Cordani ., 1988).作者: EWER 時間: 2025-3-29 19:44 作者: Spinal-Fusion 時間: 2025-3-30 02:18
Mineralisation associated with early Precambrian basic magmatismvolcanic suites. A review of the mineralisation associated with basic intrusive complexes is also presented, focusing on the chromite and PGE mineralisation of the major early Precambrian layered intrusions, and in particular the Bushveld, Stillwater and Great Dyke complexes.作者: 刻苦讀書 時間: 2025-3-30 06:43
Early Precambrian basic rocks of Indiaclei in the Indian Shield. Detailed geochemical data are rather sparse for many of these occurrences, and this review concentrates on those regions (primarily the Dharwar craton; Figure 15.1) for which a reasonable body of petrological and chemical data are available.作者: 無能性 時間: 2025-3-30 11:58
Early Precambrian basic rocks of South America (2.7Ga), Transamazonian (2.0Ga), Urua?uano–Espinhago (1.5–1.1 Ga) and Brasiliano (1.1–0.5 Ga) Cycles (see Wernick, 1981), during which the Precambrian crust progressively accreted. It has been estimated that 80% of the Precambrian of South America had formed by the end of the Transamazonian (Cordani ., 1988).作者: accrete 時間: 2025-3-30 15:01 作者: Unsaturated-Fat 時間: 2025-3-30 18:20
Ausbildung der Beamten in Brasiliennce; Hoffman, 1988), by the 1.8 Ga Hudsonian orogen. The Rae and Hearne Provinces are separated from the Slave Province to the northwest by the Great Slave Lake shear zone. The Nain Province comprises the western part of the North Atlantic craton (see Chapter 11), along the coastal strip of Labrador.作者: 保守黨 時間: 2025-3-31 00:06 作者: ELATE 時間: 2025-3-31 02:44 作者: Sad570 時間: 2025-3-31 07:34 作者: 假 時間: 2025-3-31 09:37
Stefanie Albus,Heinz-Günter Micheelpabyssal and volcanic basic components, ranging in age from early to late Archaean. In addition, early to mid-Proterozoic hypabyssal basic intrusions occur in virtually all of the Archaean cratonic regions, while early to mid-Proterozoic metavolcanic suites occur throughout western central USA (Condie, 1986).作者: 可用 時間: 2025-3-31 17:26 作者: addition 時間: 2025-3-31 18:06 作者: 和平主義者 時間: 2025-4-1 00:20 作者: 打包 時間: 2025-4-1 03:17 作者: bisphosphonate 時間: 2025-4-1 07:18
Early Precambrian layered intrusionse Stillwater Complex of southern Montana, USA at 2.7 Ga, the Great Dyke of Zimbabwe, the Jimberlana intrusion of Western Australia, and the intrusions of the Tornio-Narankavaara belt of the Baltic Shield at 2.45 Ga, and the Bushveld and Molopo Farms complexes in the Kaapvaal craton, South Africa at 作者: Ornithologist 時間: 2025-4-1 11:20
