| XIAO Wentao,ZHANG Tao,ZHENG Yulong,GAO Jinyao. 2013. Heat flow measurements on the Lomonosov Ridge, Arctic Ocean. Acta Oceanologica Sinica, 32(12):25－30 |
| Heat flow measurements on the Lomonosov Ridge, Arctic Ocean |
| Heat flow measurements on the Lomonosov Ridge, Arctic Ocean |
| Received:May 15, 2013 Revised:August 23, 2013 |
| DOI：10.1007/s13131-013-0384-3 |
| Key words:heat flow geothermal gradient Chinese National Arctic Expedition Lomonosov Ridge |
| 中文关键词: heat flow geothermal gradient Chinese National Arctic Expedition Lomonosov Ridge |
| 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. |
| Author Name | Affiliation | E-mail | | XIAO Wentao | Key Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China
The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | | | ZHANG Tao | Key Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China
The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | zhangtaosio@gmail.com | | ZHENG Yulong | Key Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China
The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | | | GAO Jinyao | Key Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China
The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | |
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| 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. |
| 中文摘要: |
| 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. |
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