Paleomagnetic investigation of the Early Permian Panjal Traps of NW India; regional tectonic implications

Stojanovic, Denis, Aitchison, Jonathan C., Ali, Jason R., Ahmad, Talat and Dar, Reyaz Ahmad (2016) Paleomagnetic investigation of the Early Permian Panjal Traps of NW India; regional tectonic implications. Journal of Asian Earth Sciences, 115 114-123. doi:10.1016/j.jseaes.2015.09.028


Author Stojanovic, Denis
Aitchison, Jonathan C.
Ali, Jason R.
Ahmad, Talat
Dar, Reyaz Ahmad
Title Paleomagnetic investigation of the Early Permian Panjal Traps of NW India; regional tectonic implications
Journal name Journal of Asian Earth Sciences   Check publisher's open access policy
ISSN 1367-9120
1878-5786
Publication date 2016-01-01
Year available 2016
Sub-type Article (original research)
DOI 10.1016/j.jseaes.2015.09.028
Open Access Status Not Open Access
Volume 115
Start page 114
End page 123
Total pages 10
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon Press
Collection year 2017
Language eng
Formatted abstract
The ∼289 Ma Panjal Traps of NW India (Kashmir) are part of a series of rift-related mafic suites (Abor, Sikkim etc.) that were erupted onto northern India (present-day coordinates) around the same time as separation of the Cimmerian blocks of Qiangtang and Sibumasu. We report new data from only the second paleomagnetic investigation of this unit. Standard alternating field and thermal demagnetization methods were used to isolate characteristic magnetizations from seven outcrops at three locations within the Kashmir Valley, NW India. Analysis of four sections (14 individual cooling units) from close to Srinagar, that together form a tectonically coherent sequence spanning ∼3 km of stratigraphy, yield a single-component, primary magnetization with a mean direction of Dec: 134.8°, Inc: 55.3° (α95 = 8.9°, k = 21.0). An inclination-only mean of 52.5° (α95 = 8.9°, k = 47.2) gives a paleolatitude of ∼33°S (±5°). A paleopole of 110.5°E 8.4°S (A95 = 10.7) is also calculated. Assuming the magnetization records a portion of the reverse polarity Kiaman Superchron, the new result indicates extrusion of the Panjal Traps basalts at mid-latitudes in the southern hemisphere. By inference this constrains the location of central Gondwana, and informs debates related to Cimmeria’s detachment from Gondwana.
Keyword Cimmerian terranes
Greater India
Paleolatitude
Panjal Traps
Permian
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Geography, Planning and Environmental Management Publications
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