| Reference Type | Journal (article/letter/editorial) |
|---|
| Title | Proterozoic geological evolution of the northern Vestfold Hills, Antarctica |
|---|
| Journal | Geological Magazine |
|---|
| Authors | Passchier, C. W. | Author |
|---|
| Bekendam, R. F. | Author |
| Hoek, J. D. | Author |
| Dirks, P. G. H. M. | Author |
| de Boorder, H. | Author |
| Year | 1991 (July) | Volume | 128 |
|---|
| Issue | 4 |
|---|
| Publisher | Cambridge University Press (CUP) |
|---|
| DOI | doi:10.1017/s0016756800017581Search in ResearchGate |
|---|
| Generate Citation Formats |
|---|
| Mindat Ref. ID | 255086 | Long-form Identifier | mindat:1:5:255086:6 |
|---|
|
| GUID | 0 |
|---|
| Full Reference | Passchier, C. W., Bekendam, R. F., Hoek, J. D., Dirks, P. G. H. M., de Boorder, H. (1991) Proterozoic geological evolution of the northern Vestfold Hills, Antarctica. Geological Magazine, 128 (4) 307-318 doi:10.1017/s0016756800017581 |
|---|
| Plain Text | Passchier, C. W., Bekendam, R. F., Hoek, J. D., Dirks, P. G. H. M., de Boorder, H. (1991) Proterozoic geological evolution of the northern Vestfold Hills, Antarctica. Geological Magazine, 128 (4) 307-318 doi:10.1017/s0016756800017581 |
|---|
| In | (1991, July) Geological Magazine Vol. 128 (4) Cambridge University Press (CUP) |
|---|
| Abstract/Notes | AbstractThe presence of polyphase shear zones transected by several suites of dolerite dykes in Archaean basement of the Vestfold Hills, East Antarctica, allows a detailed reconstruction of the local structural evolution. Archaean and early Proterozoic deformation at granulite facies conditions was followed by two phases of dolerite intrusion and mylonite generation in strike-slip zones at amphibolite facies conditions. A subsequent middle Proterozoic phase of brittle normal faulting led to the development of pseudotachylite, predating intrusion of the major swarm of dolerite dykes around 1250 Ma. During the later stages and following this event, pseudotachylite veins were reactivated as ductile, mylonitic thrusts under prograde conditions, culminating in amphibolite facies metamorphism around 1000–1100 Ma. This is possibly part of a large-scale tectonic event during which the Vestfold block was overthrust from the south. In a final phase of strike-slip deformation, several pulses of pseudotachylite-generating brittle faulting alternated with ductile reactivation of pseudotachylite. |
|---|
These are possibly similar items as determined by title/reference text matching only.
