Klootwijk, Chris T. et al. (1992): An early India-Asia contact; paleomagnetic constraints from Ninetyeast Ridge, ODP Leg 121; with Suppl. Data 92-15

Leg/Site/Hole:
ODP 121
ODP 121 756
ODP 121 757
ODP 121 758
Identifier:
1992-017352
georefid
10.1130/0091-7613(1992)020<0395:AEIACP>2.3.CO;2
doi
Creator:
Klootwijk, Chris T.
Bur. Miner. Resour., Canberra, Australia
author
Gee, Jeffrey S.
Scripps Inst. Oceanogr., United States
author
Peirce, John W.
Geophys. Explor. and Dev. Co., Calgary, AB, Canada
author
Smith, Guy M.
St. Louis Univ., United States
author
McFadden, Phil L.
author
Identification:
An early India-Asia contact; paleomagnetic constraints from Ninetyeast Ridge, ODP Leg 121; with Suppl. Data 92-15
1992
Geology (Boulder)
Geological Society of America (GSA), Boulder, CO, United States
20
5
395-398
New paleomagnetic results from sedimentary rock and basement of the Ninetyeast Ridge (Ocean Drilling Program Leg 121, Sites 756-758) detail the northward movement of the Indian plate for the past 80 m.y. Analysis of the combined paleolatitude-age profile indicates a distinct reduction in India's northward movement rate at 55+ Ma, interpreted as completion of suturing of Greater India and Asia. India's northward motion slowed from 18-19.5 cm/yr to 4.5 cm/yr for the location of Site 758. Comparison of this profile with paleomagnetic data from the wider Himalayan region indicates that initial contact between northwestern Greater India and southern Asia was already established by Cretaceous-Tertiary time. This supports a possible causal link between the India-Asia convergence and the Deccan Traps extrusion.
English
Serial
Coverage:Geographic coordinates:
North:-5.2302
West:87.3548East: 90.2142
South:-27.2118
Solid-earth geophysics; basement; Cenozoic; continental drift; Cretaceous; Indian Ocean; Indian Plate; interpretation; Leg 121; Mesozoic; mid-ocean ridges; movement; Ninetyeast Ridge; Ocean Drilling Program; ODP Site 756; ODP Site 757; ODP Site 758; paleolatitude; paleomagnetism; plate convergence; plate tectonics; pole positions; regression analysis; sedimentary rocks; statistical analysis; suture zones; tectonophysics; Upper Cretaceous;
.