Heat flow measurements on the Lomonosov Ridge, Arctic Ocean

XIAO Wentao; ZHANG Tao; ZHENG Yulong; GAO Jinyao

doi:10.1007/s13131-013-0384-3

Heat flow measurements on the Lomonosov Ridge, Arctic Ocean

doi: 10.1007/s13131-013-0384-3

Key Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China;The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China

基金项目: The major project of the China National Science and Technology "Large Oil and Gas Fields and Coal bed Gas Development" under contract No. 2011ZX05023-003-003; the Fundamental Research Funds for the Central Universities under contract No.1350219123.

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- 收稿日期: 2013-05-15
- 修回日期: 2013-08-23

Heat flow measurements on the Lomonosov Ridge, Arctic Ocean

Key Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China;The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China

摘要

摘要: Heat flow was measured on the Lomonosov Ridge during the 5th Chinese National Arctic Expedition in 2012. To derive the time-temperature curve, resistivity data were transformed to temperature by the resistivity-temperature program. Direct reading and linear regression methods were used to calculate the equilibrium temperature, which were regressed against the depth of the probes in sediment to derive the geothermal gradient. Then, heat flow was calculated as the product of geothermal gradient and thermal conductivity of sediments. The heat flow values on the basis of the two methods were similar (i.e., 67.27 mW/m² and 63.99 mW/m², respectively). The results are consistent with the measurements carried out at adjacent sites. The age of the Lomonosov Ridge predicted by the heat flow-age model was 62 Ma, which is in accordance with the inference that the ridge was separated from Eurasia at about 60 Ma.
- heatflow /
- geothermalgradient /
- ChineseNationalArcticExpedition /
- LomonosovRidge
Abstract: Heat flow was measured on the Lomonosov Ridge during the 5th Chinese National Arctic Expedition in 2012. To derive the time-temperature curve, resistivity data were transformed to temperature by the resistivity-temperature program. Direct reading and linear regression methods were used to calculate the equilibrium temperature, which were regressed against the depth of the probes in sediment to derive the geothermal gradient. Then, heat flow was calculated as the product of geothermal gradient and thermal conductivity of sediments. The heat flow values on the basis of the two methods were similar (i.e., 67.27 mW/m² and 63.99 mW/m², respectively). The results are consistent with the measurements carried out at adjacent sites. The age of the Lomonosov Ridge predicted by the heat flow-age model was 62 Ma, which is in accordance with the inference that the ridge was separated from Eurasia at about 60 Ma.
- heat flow /
- geothermal gradient /
- Chinese National Arctic Expedition /
- Lomonosov Ridge

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参考文献(23)

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Heat flow measurements on the Lomonosov Ridge, Arctic Ocean

doi: 10.1007/s13131-013-0384-3

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Heat flow measurements on the Lomonosov Ridge, Arctic Ocean

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