Further palaeomagnetic data from Chitral (Eastern Hindukush): evidence for an early India-Asia contact

Klootwijk, Chris; Conaghan, Patrick J.; Nazirullah, Russel; Jong, Kees A. De

doi:10.1016/0040-1951(94)90156-2

Cited by 54 publications

(19 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to inclination only fold test they are postfolding magnetizations. The paleolatitudes calculated for the Case-II are well in agreement with the suit of secondary magnetizations, acquired at equatorial to low northern latitudes, at the time of India-Eurasia collision (Klootwijk et al, 1979;Klootwijk et al, 1984;Klootwijk et al, 1994;Zaman and Torii, 1999). The acquisition of these secondary magnetizations is attributed to the chemically active orogenic fluids at the time of collision (Zaman and Torii, 1999).…”

Section: Age Of Natural Remanent Magnetizationssupporting

confidence: 78%

Paleomagnetic study of Utror Volcanic Formation: Remagnetizations and postfolding rotations in Utror area, Kohistan arc, northern Pakistan

Ahmad

Yoshida²,

Fujiwara

2014

Earth Planet Sp

View full text Add to dashboard Cite

The Utror Volcanic Formation forms a NE-SW belt with in Kohistan island arc, which lies between the Indian and Eurasian continents in the western Himalayas of northern Pakistan. The Utror Volcanic Formation formed during Late Paleocene, when Kohistan existed as an Andean-type arc on the southern margin of Eurasia. Five to ten block samples were collected from 17 sites of the formation for paleomagnetic studies. Magnetic minerals that serve as remanent carriers are maghemite, magnetite, hematite and titanohematite. Magnetite, hematite, and titanohematite carry the characteristic remanent magnetization (ChRM). The declination values of ChRM are highly discordant before and after structural correction. While inclination values show uniformity in geographic coordinates. The ChRM carried by magnetite yields downward inclinations, whereas the ChRM carried by hematite or titanohematite have upward inclinations in geographic coordinates. The correlation between polarity state and magnetic mineralogy suggests that the acquisition of magnetization occurred during two distinct time intervals. An inclination only fold test of ChRM of these two mineral assemblages indicates that they are post-folding magnetizations. The calculated paleolatitudes for ChRM carried by magnetite and hematite or titanohematite are 9±4• N and 13±4• N respectively. A comparison of these paleolatitudes with the Indian apparent polar wander path (APWP) shows that the remagnetization likely happened between 55 to 45 Ma. Discordant declinations indicate that these volcanics suffered local rotations after remagnetization event.

show abstract

Section: Age Of Natural Remanent Magnetizationssupporting

confidence: 78%

Paleomagnetic study of Utror Volcanic Formation: Remagnetizations and postfolding rotations in Utror area, Kohistan arc, northern Pakistan

Ahmad

Yoshida²,

Fujiwara

2014

Earth Planet Sp

View full text Add to dashboard Cite

show abstract

“…Klootwijk et al (1992) suggest that contact was made by the K/T boundary at 65 Ma, a finding based on the greatly reduced rate of northern motion and associated with a causal link to Deccan Trap formation. Klootwijk et al (1994) provide evidence that the northwestern Deccan Plate had made contact with Eurasia at or before the K/T boundary. Rowley (1996) dated an initial contact with Asia in the Lower Eocene Ma) for the northwestern Deccan Plate and a Middle Eocene contact Ma) in the northeast.…”

Section: Deccan Plate Tectonic Eventsmentioning

confidence: 78%

Sri Lankan snail diversity: faunal origins and future prospects

Naggs¹,

Raheem²

2005

Rec West Aust Mus Sup

View full text Add to dashboard Cite

-Sri Lankan snails have a complex history that might be linked to events ranging from Mesozoic plate tectonics and climate change on a global scale to more recent regional climate change and human impact. The fauna could include ancient groups that may have been present in Pangaea, diversified in Gondwana and survived in Deccan Plate refugia at the KIT boundary and Pangaean taxa that arrived via Eurasia.

show abstract

“…The Basin deformed somewhat and filled with deposits of the Lulehe Fm. The initiation of deformation and deposition in the western Qaidam Basin during this period not only indicates the initial activity and Cenozoic uplift of the Kunlun and Altyn Tagh Mts., but more importantly, could have been a direct response to the initial collision between the Indian and Eurasian plates during this time (Zeitler, 1991;Zeitler et al, 1993;Klootwijk et al, 1992Klootwijk et al, , 1994Lee and Lawver, 1995;Searle, 1996;Patzelt et al, 1996;Mattauer et al, 1999;Yin and Harrison, 2000;Aitchison, 2006, 2008;Aitchison et al, 2007;Wu et al, 2008;Yin et al, 2008;Wang et al, 2010a,b;Xia et al, 2011). This timing coincides with many other geological events: (1) the initiation of crustal shortening and increase in sedimentary deposition in the western Qaidam Basin (Zhang, 2006;Zhou et al, 2006;Wang et al, 2010a,b); (2) initiation of thrusting in the northern and southern margins of the Qaidam Basin (Yin et al, 2002); (3) increased volcanic activity on the Tibetan Plateau after 51 Ma (Chung et al, 1998(Chung et al, , 2005(Chung et al, , 2009Lai, 2000;Deng et al, 2000;Wang et al, 2001Wang et al, , 2010aMo et al, 2003;Liu et al, 2004;Li et al, 2005;Qu et al, 2009;Xia et al, 2010), and (4) formation of a series of Cenozoic basins within and near the edge of the Tibet Plateau Liu and Wang, 2001;Zhao et al, 2000;Yue et al, 2000).…”

Section: Discussionmentioning

confidence: 98%

Cenozoic uplift of the Tibetan Plateau: Evidence from the tectonic–sedimentary evolution of the western Qaidam Basin

Wang

Zheng

Zhang

et al. 2012

Geoscience Frontiers

View full text Add to dashboard Cite

Geologists agree that the collision of the Indian and Asian plates caused uplift of the Tibet Plateau. However, controversy still exists regarding the modes and mechanisms of the Tibetan Plateau uplift. Geology has recorded this uplift well in the Qaidam Basin. This paper analyzes the tectonic and sedimentary evolution of the western Qaidam Basin using sub-surface seismic and drill data. The Cenozoic intensity and history of deformation in the Qaidam Basin have been reconstructed based on the tectonic developments, faults growth index, sedimentary facies variations, and the migration of the depositional depressions. The changes in the sedimentary facies show that lakes in the western Qaidam Basin had gone from inflow to still water deposition to withdrawal. Tectonic movements controlled * Corresponding author. Tel.: þ86 10 13893297695; fax: þ86 10 09314960853.

show abstract

Further palaeomagnetic data from Chitral (Eastern Hindukush): evidence for an early India-Asia contact

Cited by 54 publications

References 37 publications

Paleomagnetic study of Utror Volcanic Formation: Remagnetizations and postfolding rotations in Utror area, Kohistan arc, northern Pakistan

Paleomagnetic study of Utror Volcanic Formation: Remagnetizations and postfolding rotations in Utror area, Kohistan arc, northern Pakistan

Sri Lankan snail diversity: faunal origins and future prospects

Cenozoic uplift of the Tibetan Plateau: Evidence from the tectonic–sedimentary evolution of the western Qaidam Basin

Contact Info

Product

Resources

About