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Mafic-ultramafic Intrusions in Beishan and Eastern Tianshan at Southern CAOB: Petrogenesis, Mineralization and Tectonic Implication

Part of the Springer Theses Book Series

DOI: 10.1007/978-3-642-54262-6

ISBN: 978-3-642-54253-4

Publisher: Springer Berlin Heidelberg - Springer Journals

Feb 28, 2014

1 - 10 of 10 Chapters

LitStream

Chapter 1Introduction

Su, Ben-Xun

Pages: 1 –11

[The Central Asian Orogenic Belt (CAOB) is the largest Phanerozoic juvenile crustal growth orogenic belt in the world, extending 7,000 km from west to east and from the Siberian Craton in the north to the Tarim Craton in the south (Fig. 1.1; Sengör et al. in Nature 364:299–307, 1993; Jahn et al....
LitStream

Chapter 2Regional Geology

Su, Ben-Xun

Pages: 13 –20

[The CAOB is a well-known Phanerozoic juvenile orogenic belt.]
LitStream

Chapter 3Analytical Methods

Su, Ben-Xun

Pages: 21 –24

[Major element compositions were determined by wavelength dispersive spectrometry using JEOL JXA8100 electron probe micro analyzer (EPMA) operating at an accelerating voltage of 15 kV and 10 nA beam current, 5 μm beam spot and 10–30 s counting time on peak.]
LitStream

Chapter 4Petrology and Mineralogy

Su, Ben-Xun

Pages: 25 –67

[The Hongshishan mafic–ultramafic intrusion is irregularly shaped and extends west to east and intrudes into Carboniferous biotite-quartz schist and marble. It has a length of 5 km and a maximum width of 1.5 km, with an area extent of about 2.8 km2 (Fig. 4.1). From surface identification and...
LitStream

Chapter 5Zircon U–Pb Geochronlogy and Hf–O Isotopes

Su, Ben-Xun

Pages: 69 –106

[The gabbro (HSX) from the Heishanxia intrusion, with mineral assemblage of coarse-grained plagioclase, augite and hornblende, was sampled for zircon separation analysis. Gabbros were collected from the Xiangshan (XSCuNi-V and XSTiFe-V), Tulaergen (TLG-V2) and Huangshan (HS-V) intrusions in the...
LitStream

Chapter 6Geochemistry

Su, Ben-Xun

Pages: 107 –134

[Representative whole-rock major and trace element analyses of the Hongshishan intrusive rocks are presented in Table 6.1. Overall, alkaline components (Na2O + K2O) are positively correlated with SiO2 (Fig. 6.1). The dunites have the lowest SiO2 (36.3–40.1 wt%), CaO (0.23–5.06 wt%), and Na2O...
LitStream

Chapter 7Petrogenesis

Su, Ben-Xun

Pages: 135 –156

[The Eastern Tianshan and Beishan are key components of the CAOB, and both are characterized by the exposure of numerous mafic–ultramafic complexes, most of which host Ni–Cu sulfide ore deposits.]
LitStream

Chapter 8Mineralization

Su, Ben-Xun

Pages: 157 –181

[Since the discovery of Poshi and Poyi intrusions in 1989, geological mapping and prospecting have been successively carried out in the Beishan area (Mao et al. 2008). Surface mapping in the Beishan Terrane shows appreciable extent of alteration and malachite mineralization in the...
LitStream

Chapter 9Permian Mantle Plume and Paleozoic Tectonic Evolution

Su, Ben-Xun

Pages: 183 –207

[For mantle-derived magmas, if the zircon Hf model age is very close to its formation age (zircon U–Pb), the magmas could be considered to be derived from a depleted mantle source. On the other hand, if the zircon Hf model age is older than its formation age, it can be concluded that the magma...
LitStream

Chapter 10Concluding Remarks

Su, Ben-Xun

Pages: 209 –211

[The Beishan Terrane is situated between the southern margin of the Eastern Tianshan, and the northeastern margin of the Tarim Basin, and its outcrops of mafic–ultramafic intrusions and series of discoveries of magmatic Ni–Cu deposits are attracting the attention from geologists. This thesis...

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