| ชื่อเรื่อง | : | Volcanogenic-hydrothermal iron-rich materials from the southern part of the Central Indian Ocean Basin |
| นักวิจัย | : | Iyer, S.D. , Gupta, S.M. , Charan, S.N. , Mills, O.P. |
| คำค้น | : | hydrothermal deposits , metalliferous sediments , cosmic spherules , pelagic clay , volcanism , hydrothermal activity |
| หน่วยงาน | : | National Institute Of Oceanography (NIO), India |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2542 |
| อ้างอิง | : | Marine Geology, Vol.158; 15-25p. , http://drs.nio.org/drs/handle/2264/1752 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | - |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | Reported is the occurrences of magnetite-rich spherules, Ti-rich particles and possibly nontronite recovered at 19 degrees S and 76 degrees E from the pelagic clay in the Central Indian Ocean Basin (CIOB). It is proposed that the magnetite spherules were formed as a result of volcanic activity in this part of the CIOB, while thw presence of nontronite suggests localized hydrothermal activity. The magnetic spherules and the associated materials are compared with similar occurrences 555 km to the north in the vicinity of the 76 degrees 30'E fracture zone. Considering radiolarian age dating of the sediment, the age of the volcano-hydrothermal episode responsible for the formation of these materials seems to be between 425 and 650 ka. It is inferred that there could have been widespread local volcanism in the CIOB |
| บรรณานุกรม | : |
Iyer, S.D. , Gupta, S.M. , Charan, S.N. , Mills, O.P. . (2542). Volcanogenic-hydrothermal iron-rich materials from the southern part of the Central Indian Ocean Basin.
: National Institute Of Oceanography (NIO), India. Iyer, S.D. , Gupta, S.M. , Charan, S.N. , Mills, O.P. . 2542. "Volcanogenic-hydrothermal iron-rich materials from the southern part of the Central Indian Ocean Basin".
: National Institute Of Oceanography (NIO), India. Iyer, S.D. , Gupta, S.M. , Charan, S.N. , Mills, O.P. . "Volcanogenic-hydrothermal iron-rich materials from the southern part of the Central Indian Ocean Basin."
: National Institute Of Oceanography (NIO), India, 2542. Print. Iyer, S.D. , Gupta, S.M. , Charan, S.N. , Mills, O.P. . Volcanogenic-hydrothermal iron-rich materials from the southern part of the Central Indian Ocean Basin. : National Institute Of Oceanography (NIO), India; 2542.
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