petrology of ultramafic and related rocks along iraqi zagros thrust zone

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3-2-5 Pyroxenite ----------------------------------------------------------------------------- 34 3-2-6 Serpentinite ------------------------------------------------------------------------- 34 3-3 Pauza ultramafic body --------------------------------------------------------------- 34 3-3-1 Spinel lherzolite ----------------------------------------------------------------- 34 3-3-2 Harzburgite -------------------------------------------------------------------------- 35 3-3-3 Dunite ------------------------------------------------------------------------------------- 35 3-3-4 Hornblendite vein -------------------------------------------------------------- 36 Chapter 4 : Mineralogy and mineral chemistry 4-1 Penjwin peridotite --------------------------------------------------------------------------- 45 4-1-1 Olivine ------------------------------------------------------------------------------------ 45 4-1-2 Spinel -------------------------------------------------------------------------------------- 45 4-1-3 Pyroxene -------------------------------------------------------------------------------- 46 4-1-4 Hydrous phases ------------------------------------------------------------------ 46 4-2 Mawat peridotite ----------------------------------------------------------------------------- 46 4-2-1 Olivine ------------------------------------------------------------------------------------ 46 4-2-2 Pyroxene -------------------------------------------------------------------------------- 47 4-2-3 Spinel -------------------------------------------------------------------------------------- 47 4-2-4 Hydrous phases ------------------------------------------------------------------ 47 4-3 Pauza peridotite ------------------------------------------------------------------------------- 48 4-2-1 Olivine ------------------------------------------------------------------------------------ 49 4-3-2 Pyroxene -------------------------------------------------------------------------------- 49 4-3-3 Spinel -------------------------------------------------------------------------------------- 49 4-3-4 Hydrous phases ------------------------------------------------------------------ 50 Chapter 5: Discussions 5-1 Classifications and Petrogenesis ---------------------------------------------- 56 5-2 Chromite alterations problem --------------------------------------------------- 57 5-2-1 Normal zoning -------------------------------------------------------------------- 57 5-2-2 Reveres zoning -------------------------------------------------------------------- 58 5-3 Serpentinization ----------------------------------------------------------------------------- 58 5-4 Partial melting -------------------------------------------------------------------------------- 59 5-5 Tectonic setting ------------------------------------------------------------------------------- 60 Chapter 6: Related rock 6 Albitite ----------------------------------------------------------------------------------------------------- 66 6-1 Field observation and petrography ------------------------------- 66 6-2 Mineralogy and Mineral chemistry ------------------------------- 67 6-2-1 Plagioclase -------------------------------------------------------------------- 67 6-2-2 Titanite ------------------------------------------------------------------------------ 68 6-2-3 Amphibole --------------------------------------------------------------------- 72 6-2-4 Apatite ---------------------------------------------------------------------------- 73 6-2-5 Allanite and analcime ---------------------------------------------- 73 6-2-6 Barian minerals --------------------------------------------------------- 74 6-2-8 Pyroxene ------------------------------------------------------------------------ 74 6-3 Whole Whol rock geochemistry ---------------------------------------- 75 6-4 Geothermobarometry ----------------------------------------------------------- 75 6-5 Discussions ------------------------------------------------------------------------------- 76 IV
Chapter 7: Conclusions and Recommendations 1 Conclusions --------------------------------------------------------------------------------------------- 99 2 Recommendations ------------------------------------------------------------------------------ 101 References ---------------------------------------------------------------------------------------------------------- 102 Appendices ------------------------------------------------------------------------------------------------------- 114 V
Page 1 and 2: PETROLOGY OF ULTRAMAFIC AND RELATED
Page 3 and 4: We certify that we read this thesis
Page 5 and 6: ABSTRACT Four main ultramafic rock
Page 7: CONTENTS Chapter 1: Background, Aim
Page 11 and 12: Figure 3 - 10: Field photograph of
Page 13 and 14: albite - tremolite zone, E = albite
Page 15 and 16: Figure 6 - 19: Time-paragenesis, al
Page 17 and 18: Table 6 - 2: Representative microna
Page 19 and 20: 1 BACKGROUND 1-1 Ultramafic rocks U
Page 21 and 22: ocks of the belt. These attributes
Page 23 and 24: 1-1-3 Metamorphism of ultramafics M
Page 25 and 26: Reaction 1: Isochemical serpentiniz
Page 27 and 28: 1-2-2 Jadeitites Jadeitite is compo
Page 29 and 30: In combining the new data on the se
Page 31 and 32: 2-1 Regional geology The Iraq Zagro
Page 33 and 34: 2-1-1 Geology of Penjwin area 2-1-1
Page 35 and 36: of Luta-Rash. Volcanic rocks are ex
Page 37 and 38: and a sandstone unit of the Paleoce
Page 39: Fig. 2-1: Tectonic subdivision of I
Page 42 and 43: Fig. 2-4: Field photograph of Gimo
Page 45 and 46: Chapter 3 Petrology of ultramafic r
Page 47 and 48: 3-1-2 Harzburgite Harzburgite is th
Page 49 and 50: 3-1-6 Serpentinite Two types of ser
Page 51 and 52: small amount of ilmenite. Hornblend
Page 53: In places, it is surrounded by fine
Page 62 and 63:
4 Mineralogy and mineral chemistry
Page 64 and 65:
compositions with Mg-number ranging
Page 66 and 67:
4-3-4 Hydrous phases Hydrous phases
Page 68 and 69:
Fig 4 -3: Compositions of chromian
Page 70 and 71:
Fig 4 -6: Compositions of chromian
Page 72 and 73:
Chapter 5 Discussions 55
Page 74 and 75:
the tectonite region of the graph (
Page 76 and 77:
involves loss and gain of CaO, SiO
Page 78 and 79:
Fig. 5 - 1: Chromian spinel composi
Page 80 and 81:
Fig. 5-3: Cr-number in spinel vs. F
Page 82 and 83:
Chapter 6 Related rock 65
Page 84 and 85:
plagioclase (Figs. 6 - 2 G,H) and z
Page 86 and 87:
Plagioclase and ilmenite are the or
Page 88 and 89:
2 CaAl 2 Si 2 O 8 (anorthite) + Na
Page 90 and 91:
apatite grains, characterized by bl
Page 92 and 93:
the rim. Estimated pressure - tempe
Page 94 and 95:
16 clinozoisite + H 2 O. (16) From
Page 96 and 97:
metamorphism. It was also formed du
Page 98 and 99:
Fig. 6 - 2: Photomicrographs and im
Page 100 and 101:
Fig. 6 - 4: Backscattered electron
Page 102 and 103:
Fig. 6 - 7: Line scan profile acros
Page 104 and 105:
Fig. 6 - 9: Line scan profile of pa
Page 106 and 107:
Fig. 6 - 11: (A) Backscatter electr
Page 108 and 109:
Fig. 6 - 13: Field of the approxima
Page 110 and 111:
Fig. 6 - 15: Whole rock chemical co
Page 112 and 113:
Fig. 6 - 17: Whole rock chemical co
Page 114 and 115:
Fig. 6 - 19: Time-paragenesis, albi
Page 116 and 117:
1 Conclusions 1. The Iraqi Zagros T
Page 118 and 119:
2 Recommendations for further works
Page 120 and 121:
Arai, S., 1987. An estimation of th
Page 122 and 123:
Chakhmouradian, A.R., Reguir, E.P.,
Page 124 and 125:
Evans, B.W., Frost, B.R., 1975. Chr
Page 126 and 127:
Kamenetsky, V., Crawford, A. J., an
Page 128 and 129:
Morand, V.J., 1990. High chromium a
Page 130 and 131:
Watson, E.B., Wark, D. A. and Thoma
Page 132 and 133:
Table 4 - 1: Representative microna
Page 134 and 135:
Page 136 and 137:
Page 138 and 139:
Page 140 and 141:
Page 142 and 143:
Table 4 -11: Representative microna
Page 144 and 145:
Table 4 -13: Representative microna
Page 146 and 147:
Page 148 and 149:
Page 150 and 151:
Page 152 and 153:
Page 154 and 155:
Page 156:
Research public activity Peer-revie
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petrology of ultramafic and related rocks along iraqi zagros thrust zone

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