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Tables of Contents for Petrologic and Structural History of Tobago, West Indies
Chapter/Section Title
Page #
Page Count
Abstract
1
2
Introduction
3
1
Geologic framework
4
1
North Coast Schist
4
10
Rock units
5
3
Parlatuvier Formation
5
2
Mount Dillon Formation
7
1
Metasedimentary and metatuff unit
8
1
Metamorphic conditions
8
3
Depositional environment
11
1
Structural fabric elements
11
1
Synmetamorphic structures
11
1
Late metamorphic structures
11
1
Postmetamorphic structures
12
1
Possible broad correlations
12
2
Tobago Volcanic Group
14
9
Stratigraphic sequence and depositional environment
14
7
Argyle Formation
17
1
Goldsborough Formation
17
1
Bacolet Formation
17
3
Volcanogenic sedimentary rocks
20
1
Undifferentiated part of the Tobago Volcanic Group
20
1
Metamorphism
21
1
Possible broad correlations
21
2
Tobago Plutonic suite and associated rocks
23
9
Deformed volcanic-plutonic complexes
23
1
Ultramafic rocks
24
2
Field characteristics and lithologic variations
24
1
Petrography
24
2
Gabbro-diorite
26
3
Field characteristics and lithologic variations
26
3
Petrography
29
1
Tonalitic rocks
29
2
Field characteristics and lithologic variations
29
2
Petrography
31
1
Dike swarm
31
1
Rocks of the Dynamothermal Aureole
32
3
Field relationships and lithologic variations
32
1
Structural fabric
33
1
Metamorphism
34
1
Protolith of the amphibolite facies aureole
35
1
Macroscopic structural features of Tobago
35
5
Boundary between the plutonic suite and North Coast Schist
35
1
Central Tobago fault system
36
2
North-northwest-striking cross faults
38
1
Upper Courland fault zone
39
1
Black Rock fault zone
39
1
Southern Tobago fault system
40
1
Bending of structural and lithic boundaries
40
1
Developmental model for the Tobago fragment of the Mesozoic oceanic arc of the southern Caribbean
40
5
Mesozoic age relationships for Tobago
40
1
Penetrative deformation and metamorphism of the North Coast Schist
40
2
Pluton subsidence, extensional shear zone, and superposed normal faulting
42
2
Strike-slip history
44
1
Evaluation of some alternative interpretations
44
1
Structural position of Tobago in the southeastern Caribbean
45
2
Comparison with rocks of the Caribbean-Colombian Cretaceous Igneous Province
47
2
Tobago, West Indies, as a model example of a cross section through intraoceanic-arc crust
49
1
Acknowledgments
50
1
References Cited
50
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