声明
Abstract
摘要
Table of Contents
Chapter 1.Introduction and Literature review
1.1.History and previous work
1.1.3.Aims and Objectives of Present Study
1.2.Introduction of granite
1.2.1.Generation of granite
1.3.Types of granites
1.3.1.A-type granites
1.4.I-type and S-type granites
1.5.Economic implications of I-and S-type granites
1.6.Introduction of adakitic rocks
1.7.Worldwide background of porphyry deposits
Chapter 2.Regional geology and tectonics
2.1.Regional geology and tectonics
2.1.1.Geology of Nagarparkar Igneous Complex(NPIC)Area
2.1.2.Types of granites in Nagarparkar Igneous Complex(NPIC)
Chapter 3.Analytical methods
3.1.Major and trace elements
3.3.Zircon Lu-Hf isotopes
3.4.Sr-Nd-Pb isotopes
3.5.Sulfide isotopes
Chapter 4.Results
4.1.Major elements(Gabbro,Bt-granite and Kfs-granite)
4.2.Trace elements
4.3.Zircon U-Pb age dating(Gabbro rocks)
4.4.Zircon U-Pb dating Bt-granite and Kfs-granite
4.5.Zircon Lu-Hf isotopes
Chapter 5.Discussion
5.1.Characteristics of gabbro from NPIC area
5.2.Petrogenesis of gabbro from NPIC area
5.3.A-type granite affmity of the NPIC Kfs-granite
5.4.Petrogenesis of NPIC biotite granites and Kfs-granites
5.5.Source of NPIC granites
5.6.Oxidized Zones in NPIC
5.7.Source mineralization for Sulfides
5.8.Oxidation and Reduction
5.9.Oxidized and Ieached Zones
5.10.Implication for Cu-Au mineralization in NPIC area
5.11.Tectonic evolution
Chapter 6.Regional geology and tectonics of Chagai Arc
6.1.Regional geology and Tectonics of Balochistan Basin
6.1.1.Tectonics of Chagai magmatic Arcwestern Pakistan
6.1.2.Tethys Ocean affinity with Gondwana Land
6.2.Stratigraphic succession of Saindak area
6.2.1.Sinjrani volcanic group
6.2.2.Humai Formation
6.2.3.Rakhshani/Juzzak Formation
6.2.4.Saindak Formation
6.2.5.Amalaf Formation
6.3.Sample description and Petrography
6.3.1.Monzo-diorite
6.3.2.Quartz-diorite
6.3.3.Mineralization
Chapter 7.Results
7.1.Major elements
7.2.Trace elements
7.3.Zircon U-Pb Dating
7.4.Sr-Nd-Pb isotopes
7.5.S-Pb isotope composition
Chapter 8.Discussion
8.1.Two types of adakites from Saindak area
8.1.1 Quartz-diorite High Silica Adakites(HSA)
8.1.2.Monzo-diorite Low Silica Adakites(LSA)
8.2.Petrogenesis of Saindak adakite rocks
8.3.CU-Au mineralization in Saindak area
8.4.Geodynamic of Saindak adakitic rocks
Conclusions
References
Appendix
Acknowledgment
Publications