Author: Stuart A. Moller
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 132
Book Description
Structural Analysis of the Grandfather Mountain Window and Vicinity, North Carolina
Author: Stuart A. Moller
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 132
Book Description
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 132
Book Description
Geology of the Grandfather Mountain, window and vicinity, North Carolina and Tennessee : structural and metamorphic history of rocks exposed in the largest window in the crystalline belt of the southern Appalachians, and a discussion of the significance of the window in interpretation of the tectonics of the region
Author: Bruce Bryant
Publisher:
ISBN:
Category :
Languages : en
Pages : 190
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 190
Book Description
Geology of the Grandfather Mountain Window and Vicinity, North Carolina and Tennessee
Author: Bruce Bryant
Publisher:
ISBN:
Category : Blue Ridge Mountains
Languages : en
Pages : 220
Book Description
Structural and metamorphic history of rocks exposed in the largest window in the crystalline belt of the southern Appalachians, and a discussion of the significance of the window in interpretation of the tectonics of the region.
Publisher:
ISBN:
Category : Blue Ridge Mountains
Languages : en
Pages : 220
Book Description
Structural and metamorphic history of rocks exposed in the largest window in the crystalline belt of the southern Appalachians, and a discussion of the significance of the window in interpretation of the tectonics of the region.
Structure and origin of Grandfather Mountain Window, North Carolina
Author: Steven E. Boyer
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 560
Book Description
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 560
Book Description
Geologic Field Guides to North Carolina and Vicinity
Author: John M. Dennison
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 250
Book Description
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 250
Book Description
Geological Survey Professional Paper
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 290
Book Description
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 290
Book Description
Structural Analysis of the Tablerock Thrust Sheet, Grandfather Mountain Window, Northwestern North Carolina
Author: Ann Elizabeth Walker
Publisher:
ISBN:
Category : Geology, Structural
Languages : en
Pages : 94
Book Description
The Tablerock thrust sheet is exposed along the southwestern margin of Grandfather Mountain window in northwestern North Carolina, where it separates basement and cover rocks inside the window from basement thrust sheets of the overriding Blue Ridge-Piedmont megathrust sheet. It is a complex of footwall-derived horses of rifted-margin metasedimentary rocks, including Neoproterozoic to Early Cambrian Chilhowee Group quartzite and phyllite, and Shady Dolomite. Penetrative deformation throughout the Tablerock thrust sheet is defined by an extensively transposed foliation, and strong colinearity between well developed transport lineations and SE/NW-trending tight, isoclinal, and sheath folds. Centimeter- to meter-scale sheath folds are common throughout the interior of the thrust sheet, and not just within fault zones. NE-trending/NW-vergent crenulations and mesoscale open folds overprint these fabric elements, and represent one to two later phases of deformation. The strong colinearity between transport lineations and the hinges of tight to isoclinal folds, prevalence of mesoscale sheath folds, and outcrop patterns on Bryant and Reed’s 1970 map suggest SE/NW-trending megascopic folds at Linville Falls waterfall, Woodlawn quarry, and in the Linville Gorge Wilderness Area are map-scale sheath folds. Deformation temperatures estimated from metamorphic mineral assemblages, quartz lattice-preferred orientations, dynamic recrystallization microstructures, feldspar deformation microstructures, and the opening angles of quartz [c]-axis fabrics indicate the Tablerock thrust sheet reached 550–595 °C during lower–middle amphibolite facies conditions, and was later overprinted by upper greenschist to lower amphibolite facies conditions at 465–550 °C. These estimates are at least 120 °C higher than all previously reported temperatures, and are consistent with a model in which the Tablerock thrust sheet was significantly deformed during coupled transport with the Blue Ridge-Piedmont megathrust sheet prior to being emplaced at its present location.
Publisher:
ISBN:
Category : Geology, Structural
Languages : en
Pages : 94
Book Description
The Tablerock thrust sheet is exposed along the southwestern margin of Grandfather Mountain window in northwestern North Carolina, where it separates basement and cover rocks inside the window from basement thrust sheets of the overriding Blue Ridge-Piedmont megathrust sheet. It is a complex of footwall-derived horses of rifted-margin metasedimentary rocks, including Neoproterozoic to Early Cambrian Chilhowee Group quartzite and phyllite, and Shady Dolomite. Penetrative deformation throughout the Tablerock thrust sheet is defined by an extensively transposed foliation, and strong colinearity between well developed transport lineations and SE/NW-trending tight, isoclinal, and sheath folds. Centimeter- to meter-scale sheath folds are common throughout the interior of the thrust sheet, and not just within fault zones. NE-trending/NW-vergent crenulations and mesoscale open folds overprint these fabric elements, and represent one to two later phases of deformation. The strong colinearity between transport lineations and the hinges of tight to isoclinal folds, prevalence of mesoscale sheath folds, and outcrop patterns on Bryant and Reed’s 1970 map suggest SE/NW-trending megascopic folds at Linville Falls waterfall, Woodlawn quarry, and in the Linville Gorge Wilderness Area are map-scale sheath folds. Deformation temperatures estimated from metamorphic mineral assemblages, quartz lattice-preferred orientations, dynamic recrystallization microstructures, feldspar deformation microstructures, and the opening angles of quartz [c]-axis fabrics indicate the Tablerock thrust sheet reached 550–595 °C during lower–middle amphibolite facies conditions, and was later overprinted by upper greenschist to lower amphibolite facies conditions at 465–550 °C. These estimates are at least 120 °C higher than all previously reported temperatures, and are consistent with a model in which the Tablerock thrust sheet was significantly deformed during coupled transport with the Blue Ridge-Piedmont megathrust sheet prior to being emplaced at its present location.
Geological Survey Professional Paper
Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 214
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 214
Book Description
Road Log of the Grandfather Mountain Area, North Carolina
Author: Bruce Hazelton Bryant
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 32
Book Description
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 32
Book Description
U.S. Geological Survey Professional Paper
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 1252
Book Description
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 1252
Book Description