Heat flow in the continental area of China: a new data set

Hu, Shanshan; He, Lijuan; Wang, Jing

doi:10.1016/s0012-821x(00)00126-6

Cited by 502 publications

(305 citation statements)

References 7 publications

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“…The borehole ice temperature was also measured several other times over the following year of 2015. ) across the central Tibetan Plateau (Hu et al, 2000), but higher than the value (79 mW m −2 ) derived from Naimonanyi glacier (734 km from Qiangtang glacier) in the southwestern Tibetan Plateau (Zhao et al, 2014a). …”

Section: Introductionmentioning

confidence: 53%

“…Now, the whole glacier seems cold-based despite the warmest basal temperature being only -0.2 °C below pressure melting point, consistent with the absence of any subglacial outlet stream. The geothermal heat flux from the measured temperature profile is higher than the southeast of Tibetan Plateau (Hu et al, 2000), which leads to a relatively warm bed. We assumed a no-slip boundary condition for all the simulations, consistent with no basal temperate ice during the prognostic experiments, and the absence of a subglacial water outflow.…”

Section: Discussionmentioning

confidence: 86%

See 1 more Smart Citation

Simulating the Evolution of Qiangtang No. 1 Glacier in the Central Tibetan Plateau to 2050

Tian

Yang

et al. 2017

Arctic, Antarctic, and Alpine Research

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Section: Introductionmentioning

confidence: 53%

Section: Discussionmentioning

confidence: 86%

Simulating the Evolution of Qiangtang No. 1 Glacier in the Central Tibetan Plateau to 2050

Tian

Yang

et al. 2017

Arctic, Antarctic, and Alpine Research

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“…The statistical data of heat flow also shows that heat flow value in geologic unit decreases with age increase of the last tectonic-thermal event it undergoes (Pollack et al, 1993). The studies of Peng et al (Peng et al, 2007;Jun et al, 1995;Shejiao et al, 2000;Hu et al, 2000) display that the monolithic geothermal gradient is between 13.0 and 39.9 C/km in Southern Huabei basins, an average of 25.3 C/km. The heat flow value is between 30 and 89.6 mW/m 2 , with an average of 53.7 mW/m 2 .…”

Section: Methodsmentioning

confidence: 88%

Energy conservation in the Earth's crust and climate change

2012

Journal of the Air & Waste Management Association

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“…Zheng and Zhang, 1996) in Central Jiangxi, Southeast China. and possibly as early as Late Archean; Wang and O'Reilly, 2003) may have survived lithospheric thinning during the Late Mesozoic (Wang and O'Reilly, 2003). This is also suggested by seismic and geothermal data (Hu et al, 2000;Yang, 2003;Yu et al, 2003a), which show that old lithospheric remnants are present in the uppermost layers of the lithosphere (Xu et al, 2002). Nevertheless, the timing and mechanisms for this event remain poorly understood, owing to the lack of knowledge about the nature of the mantle source during the Paleocene that links Late Mesozoic to Late Cenozoic magmatism in Southeast China.…”

Section: Introductionmentioning

confidence: 91%

K-Ar dating, geochemical and Sr-Nd-Pb isotopic systematics of Paleocene mafic rocks in Central Jiangxi, SE China: Evidence for lithosphere replacement

Xie

Mao

et al. 2006

Geochem. J.

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Geochemical and isotopic studies were carried out on Paleocene mafic rocks in the Taihe Basin, central Jiangxi, Southeast China, in order better to understand their magma sources and tectonic implications. K-Ar dating results show that these mafic rocks intruded during the Paleocene (50-65 Ma). These Paleocene mafic rocks are porphyritic diabase and have similar geochemical features, such as strong enrichment of large ion lithophile element (LILE, e.g., Rb, Ba, Sr), slight enrichment of light rare earth element (LREE) and high field strength element (HFSE, e.g., Nb, Ta, Ti, P). The mafic rocks are also characterized by high rare earth element (REE) and minor Eu anomalies (δEu = 0.88-1.2) and have uniform initial 87 Sr/ 86 Sr (0.7041-0.7064) and Pb isotopic composition ( 206 Pb/ 204 Pb = 18.338-18.677) as well as a relatively wide range of initial Nd isotopic ratios (ε Nd (T)) varying from +0.8 to +6.2. These geochemical characteristics are different from those of subduction-related basalts, but similar to oceanic island basalts (OIB). Geochemical and isotopic evidence suggests that mafic rocks in the Taihe Basin were not significantly affected by crustal contamination and originated from asthenospheric mantle with a minor involvement of EM 2 mantle component. It is noted that Cretaceous basaltic rocks in Southeast China show enriched geochemical and isotopic compositions and were derived from a highly heterogeneous lithospheric mantle with minor asthenosphere components. On the other hand, Late Cenozoic basalts in Southeast China, which display OIB-like geochemical characteristics, were probably generated by melting of depleted asthenospheric mantle (DMM or MORB) with an involvement of EM 2 lithospheric mantle and a paucity of EM 1 lithospheric mantle. The Paleocene mafic rocks of the Taihe Basin exhibit transitional geochemical features between Cretaceous and Late Cenozoic basaltic magmatism, indicating that the involvement of asthenospheric mantle beneath Southeast China increased with time from Late Mesozoic to Cenozoic. It is suggested that the lithosphere replacement beneath Southeast China was associated with lithosphere extension and thinning, with decompression melting of the upwelling asthenosphere having taken place during the Paleocene period. Lithosphere replacement might be related to subduction roll-back or/and steepening of Paleo-Pacific plate due to injection of asthenospheric material into the mantle wedge beneath Southeast China.

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Heat flow in the continental area of China: a new data set

Cited by 502 publications

References 7 publications

Simulating the Evolution of Qiangtang No. 1 Glacier in the Central Tibetan Plateau to 2050

Simulating the Evolution of Qiangtang No. 1 Glacier in the Central Tibetan Plateau to 2050

Energy conservation in the Earth's crust and climate change

K-Ar dating, geochemical and Sr-Nd-Pb isotopic systematics of Paleocene mafic rocks in Central Jiangxi, SE China: Evidence for lithosphere replacement

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