Geodynamic development of the Adola Belt (Southern Ethiopia) in the neoproterozoic and its control on gold mineralization:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Berlin
Köster
1996
|
| Ausgabe: | 1. Aufl. |
| Schriftenreihe: | Wissenschaftliche Schriftenreihe Geologie und Bergbau
5 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | 156 S. graph. Darst. |
| ISBN: | 3895742074 |
Internformat
MARC
| LEADER | 00000nam a2200000 cb4500 | ||
|---|---|---|---|
| 001 | BV011034981 | ||
| 003 | DE-604 | ||
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| 007 | t| | ||
| 008 | 961028s1996 gw d||| m||| 00||| eng d | ||
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| 020 | |a 3895742074 |c kart. : DM 44.80 |9 3-89574-207-4 | ||
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| 035 | |a (DE-599)BVBBV011034981 | ||
| 040 | |a DE-604 |b ger |e rakddb | ||
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| 044 | |a gw |c DE | ||
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| 050 | 0 | |a QE635.E8 | |
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| 100 | 1 | |a Worku, Hailu |e Verfasser |0 (DE-588)114782105 |4 aut | |
| 245 | 1 | 0 | |a Geodynamic development of the Adola Belt (Southern Ethiopia) in the neoproterozoic and its control on gold mineralization |c Hailu Worku |
| 250 | |a 1. Aufl. | ||
| 264 | 1 | |a Berlin |b Köster |c 1996 | |
| 300 | |a 156 S. |b graph. Darst. | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
| 338 | |b nc |2 rdacarrier | ||
| 490 | 1 | |a Wissenschaftliche Schriftenreihe Geologie und Bergbau |v 5 | |
| 502 | |a Zugl.: Berlin, Techn. Univ., Diss., 1996 | ||
| 650 | 4 | |a Geologie | |
| 650 | 4 | |a Geodynamics |z Ethiopia | |
| 650 | 4 | |a Geology, Structural |z Ethiopia | |
| 650 | 4 | |a Gold ores |x Geology |z Ethiopia | |
| 650 | 0 | 7 | |a Golderz |0 (DE-588)4332630-4 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Mineralisation |0 (DE-588)4132279-4 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Geodynamik |0 (DE-588)4020212-4 |2 gnd |9 rswk-swf |
| 651 | 7 | |a Adola |0 (DE-588)4396922-7 |2 gnd |9 rswk-swf | |
| 655 | 7 | |0 (DE-588)4113937-9 |a Hochschulschrift |2 gnd-content | |
| 689 | 0 | 0 | |a Adola |0 (DE-588)4396922-7 |D g |
| 689 | 0 | 1 | |a Geodynamik |0 (DE-588)4020212-4 |D s |
| 689 | 0 | 2 | |a Golderz |0 (DE-588)4332630-4 |D s |
| 689 | 0 | 3 | |a Mineralisation |0 (DE-588)4132279-4 |D s |
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| 830 | 0 | |a Wissenschaftliche Schriftenreihe Geologie und Bergbau |v 5 |w (DE-604)BV009687165 |9 5 | |
| 856 | 4 | 2 | |m DNB Datenaustausch |q application/pdf |u http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=007389644&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |3 Inhaltsverzeichnis |
| 943 | 1 | |a oai:aleph.bib-bvb.de:BVB01-007389644 | |
Datensatz im Suchindex
| _version_ | 1820882440681422848 |
|---|---|
| adam_text |
CONTENTS
ZUSAMMENFASSUNG
1
ABSTRACT
3
ACKNOWLEDGMENTS
5
CONTENTS
6
1.
INTRODUCTION
9
1.1
GEOGRAPHIC
FEATURES
9
1.2
PREVIOUS
WORK
10
1.3
OBJECTIVE
AND
SCOPE
OF
THE
PRESENT
WORK
12
1.3.1
GEOLOGY
OF
THE
ADOLA
BELT
12
1.3.2
ADOLA
GOLD
DEPOSITS
,
12
1.4
METHODS
13
1.4.1
FIELD
METHODS
13
1.4.2
MICROSCOPIC
INVESTIGATION
14
1.4.3
ELECTRON
MICROPROBE
INVESTIGATION
14
1.4.4
CHEMICAL
ANALYSES
14
1.4.4.1
SAMPLE
PREPARATION
14
1.4.4.2
MAJOR,
TRACE
AND
REE
DETERMINATIONS
14
1.4.4.3
ISOTOPES
15
2.
REGIONAL
GEOLOGICAL
SETTING
17
2.1
PRECAMBRIAN
GEOLOGY
OF
ETHIOPIA
17
2.1.1
REWORKED
PRE-PAN-AFRICAN
CRUST
17
2.1.2
JUVENILE
PAN-AFRICAN
CRUST
19
2.1.3
RELATIONSHIP
BETWEEN
REWORKED
PRE-PAN-AFRICAN
AND
PAN-AFRICAN
JUVENILE
CRUST
19
2.2
GEOLOGY
OF
SOUTHERN
ETHIOPIA
21
3.
LITHOLOGY
AND
METAMORPHISM
24
3.1
LITHOSTRATIGRAPHY
AND
PETROTECTONIC
ASSEMBLAGES
24
3.1.1
HIGH-GRADE
GNEISSES,
SCHISTS
AND
ASSOCIATED
MAFIC-ULTRAMAFIC
COMPLEXES
24
3.1.2
LOW-GRADE
METAVOLCANO-SEDIMENTARY
AND
MAFIC-ULTRAMAFIC
ROCKS
26
3.1.3
GRANITOID
ROCKS
28
3.1.3.1
PRE-COLLISION
INTERMEDIATE
PHITONS
28
3.1.3.2
SYN-COLLISION
FELSIC
PLUTONS
28
3.1.3.3
LATE
TO
POST-COLLISION
PLUTONS
29
3.2
METAMORPHISM
30
3.2.1
MINERAL
PARAGENESES,
TEXTURES
AND
CHEMISTRY
30
3.2.1.1
PARAGENESIS
AND
TEXTURES
OFTHE
HIGH-GRADE
TERRAINS
31
3.2.1.2
PARAGENESES
AND
TEXTURES
OF
THE
METAVOLCANO-SEDIMENTARY
MAFIC-ULTRAMAFIC
ROCKS
33
3.2.1.3
MINERAL
CHEMISTRY
35
3.2.2
METAMORPHIC
HISTORY
36
3.2.3
TECTONIC
IMPLICATIONS
40
4.
STRUCTURAL
ANALYSES
41
4.1
THRUST-FOLD
EVENT
(DIA)
41
4.1.1
SODDA
TERRAIN
41
4.1.2
MEGADO
TERRAIN
45
4.1.3
SHAKISSO
TERRAIN
49
4.1.4
KENTICHA
TERRAIN
51
4
1.5
ZEMBABA
TERRAIN
52
4.2
TRANSPRESSION
(DJ)
54
4.3
LATE
BRITTLE
FAULTS
56
4.4
CORRELATION
OF
DEFORMATION
PATTERNS
ACROSS
THE
ADOLA
BELT
56
4.5
RELATIONSHIP
WITH
REGIONAL
STRUCTURES
IN
SOUTHERN
ETHIOPIA
AND
IMPLICATIONS
FOR
SINISTRAL
TRANSPRESSION
60
4.5.1
MOYALE
TRANSPRESSIONAL
ZONE
62
4.5
2
OROGEN-PARALLEL
SHEAR
ZONE
62
4.5.3
NW-SE
SHEAR
ZONES
64
4.5.4
IMPLICATION
FOR
TRANSPRESSION
64
S.
GOLD
DEPOSITS
66
5.1
DISTRIBUTION
AND
GEOLOGICAL
CHARACTERISTICS
OF
THE
GOLD
DEPOSITS
66
5.1.1
LAGA
DAMBI
GOLD
DEPOSIT
66
5.1.1.1
HOST
ROCK
LITHOLOGY
66
5.1
1.2
METAMORPHISM
AND
ALTERATION
PATTERNS
68
5.1.1.3
STRUCTURES
68
5.1.1.4
GOLD
MINERALIZATON
70
5.1.2
DIGATI
AND
DARMI
DAMA
GOLD
OCCURRENCES
73
5.2
RELATIONSHIP
BETWEEN
METAMORPHISM,
DEFORMATION
AND
GOLD
MINERALIZATION
76
5.3
STRUCTURAL
CONTROLS
77
5.4
RELATIVE
TIMING
OF
GOLD
MINERALIZATION
79
5.5
MECHANISM
OF
DEPOSITION
79
6.
GEOCHEMISTRY,
GEOCHRONOLGY
AND
ISOTOPIC
CHARACTERISTICS
OF
THE
MAGMATIC
ROCKS
82
6.1
DESCRIPTION
OF
SAMPLES
AND
ALTERATION
EFFECTS
82
6.2
LITHOCHEMISTRY
AND
TECTONO-MAGMATIC
DISCRIMINATIONS
85
6
2
1
VOLCANIC
AND
SUBVOLCANIC
ROCKS
85
6.2.2
GRANITOIDS
98
6.3
ISOTOPE
GEOCHEMISTRY
105
6.3.1
U-PB
ZIRCON
GEOCHRONOLOGY
106
6.3.1.1
ALGHAE
QUARTZOFELDSPATHIC
GNEISS
(DH
10)
106
6.3.1.2
GARIBORO
GRANITE
(KA8)
106
6.3.1
3
BUIJIJI
GRANITE
(DH7)
109
6.3.14
LAGA
DIMA
GRANITE
(LD6)
109
6.3.2
RB-SR
AND
SM-ND
ISOTOPES
109
6.3.2.1
RB-SR
DATA
109
6.3.2.2
SM-ND
ISOTOPES
110
6.3.3
PB
ISOTOPES
OF
THE
ADOLA
GRANITOIDS
114
6.4
MODEL
OF
MAGMA
GENERATION
116
7.
GEODYNAMIC
EVOLUTION
AND
ITS
IMPLICATION
FOR
GOLD
MINERALIZATION
120
7.1
GEODYNAMIC
EVOLUTION
120
7.1.1
EVOLUTION
OF
A
PASSIVE
CONTINENTAL
MARGIN
AND
DEVELOPMENT
OF
AN
OCEAN
BASIN
121
7
1.2
SUBDUCTION
AND
ARC
FORMATION
121
7
1.3
INTRA-OCEANIC
ARC
ACCRETION,
CONTINUED
SUBDUCTION
AND
BACK-ARC
BASIN
DEVELOPMENT
122
7
1.4
DEVELOPMENT
OF
CONTINENTAL
MARGIN
ARCS,
ARC/BACK-ARC
ACCRETION
AND
COLLISION
TECTONICS
YY
123
7.1
5
LATE-
TO
POST-COLLISION
EVENT
124
7.2
TECTONIC
MODEL
125
7.3
IMPLICATION
OF
THE
GEODYNAMIC
EVOLUTION
FOR
GOLD
MINERALIZATION
128
7
3.1
TECTONOGENETIC
DEVELOPMENT
OF
THE
GOLD
DEPOSITS
128
7
3
2
COMPARISON
WITH
OTHER
STRUCTURALLY
CONTROLLED
GOLD
DEPOSITS
131
7.3.3
POTENTIAL
FOR
FUTURE
EXPLORATION
134
8.
REFERENCES
136
9.
APPENDIX
145 |
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| author | Worku, Hailu |
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| discipline | Geographie |
| edition | 1. Aufl. |
| format | Thesis Book |
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| genre | (DE-588)4113937-9 Hochschulschrift gnd-content |
| genre_facet | Hochschulschrift |
| geographic | Adola (DE-588)4396922-7 gnd |
| geographic_facet | Adola |
| id | DE-604.BV011034981 |
| illustrated | Illustrated |
| indexdate | 2025-01-10T17:06:56Z |
| institution | BVB |
| isbn | 3895742074 |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-007389644 |
| oclc_num | 37584008 |
| open_access_boolean | |
| owner | DE-703 DE-83 |
| owner_facet | DE-703 DE-83 |
| physical | 156 S. graph. Darst. |
| publishDate | 1996 |
| publishDateSearch | 1996 |
| publishDateSort | 1996 |
| publisher | Köster |
| record_format | marc |
| series | Wissenschaftliche Schriftenreihe Geologie und Bergbau |
| series2 | Wissenschaftliche Schriftenreihe Geologie und Bergbau |
| spelling | Worku, Hailu Verfasser (DE-588)114782105 aut Geodynamic development of the Adola Belt (Southern Ethiopia) in the neoproterozoic and its control on gold mineralization Hailu Worku 1. Aufl. Berlin Köster 1996 156 S. graph. Darst. txt rdacontent n rdamedia nc rdacarrier Wissenschaftliche Schriftenreihe Geologie und Bergbau 5 Zugl.: Berlin, Techn. Univ., Diss., 1996 Geologie Geodynamics Ethiopia Geology, Structural Ethiopia Gold ores Geology Ethiopia Golderz (DE-588)4332630-4 gnd rswk-swf Mineralisation (DE-588)4132279-4 gnd rswk-swf Geodynamik (DE-588)4020212-4 gnd rswk-swf Adola (DE-588)4396922-7 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Adola (DE-588)4396922-7 g Geodynamik (DE-588)4020212-4 s Golderz (DE-588)4332630-4 s Mineralisation (DE-588)4132279-4 s DE-604 Wissenschaftliche Schriftenreihe Geologie und Bergbau 5 (DE-604)BV009687165 5 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=007389644&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Worku, Hailu Geodynamic development of the Adola Belt (Southern Ethiopia) in the neoproterozoic and its control on gold mineralization Wissenschaftliche Schriftenreihe Geologie und Bergbau Geologie Geodynamics Ethiopia Geology, Structural Ethiopia Gold ores Geology Ethiopia Golderz (DE-588)4332630-4 gnd Mineralisation (DE-588)4132279-4 gnd Geodynamik (DE-588)4020212-4 gnd |
| subject_GND | (DE-588)4332630-4 (DE-588)4132279-4 (DE-588)4020212-4 (DE-588)4396922-7 (DE-588)4113937-9 |
| title | Geodynamic development of the Adola Belt (Southern Ethiopia) in the neoproterozoic and its control on gold mineralization |
| title_auth | Geodynamic development of the Adola Belt (Southern Ethiopia) in the neoproterozoic and its control on gold mineralization |
| title_exact_search | Geodynamic development of the Adola Belt (Southern Ethiopia) in the neoproterozoic and its control on gold mineralization |
| title_full | Geodynamic development of the Adola Belt (Southern Ethiopia) in the neoproterozoic and its control on gold mineralization Hailu Worku |
| title_fullStr | Geodynamic development of the Adola Belt (Southern Ethiopia) in the neoproterozoic and its control on gold mineralization Hailu Worku |
| title_full_unstemmed | Geodynamic development of the Adola Belt (Southern Ethiopia) in the neoproterozoic and its control on gold mineralization Hailu Worku |
| title_short | Geodynamic development of the Adola Belt (Southern Ethiopia) in the neoproterozoic and its control on gold mineralization |
| title_sort | geodynamic development of the adola belt southern ethiopia in the neoproterozoic and its control on gold mineralization |
| topic | Geologie Geodynamics Ethiopia Geology, Structural Ethiopia Gold ores Geology Ethiopia Golderz (DE-588)4332630-4 gnd Mineralisation (DE-588)4132279-4 gnd Geodynamik (DE-588)4020212-4 gnd |
| topic_facet | Geologie Geodynamics Ethiopia Geology, Structural Ethiopia Gold ores Geology Ethiopia Golderz Mineralisation Geodynamik Adola Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=007389644&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| volume_link | (DE-604)BV009687165 |
| work_keys_str_mv | AT workuhailu geodynamicdevelopmentoftheadolabeltsouthernethiopiaintheneoproterozoicanditscontrolongoldmineralization |