Literature Review
The Global Heat Flow Database (GHFDB) is committed to maintaining the highest standards of data quality. To achieve this, we have implemented a rigorous literature review process that ensures all datasets are thoroughly vetted before being made publicly available. To learn more about the review process and how you can contribute, please click the button below.
Teplovoye pole geologicheskikh struktur belarusi (Heat Field of Geological Structures of Belarus )
Estimating mud expulsion rates from temperature measurements on Hakon Mosby Mud Volcano, SW Barents Sea
The HAkon Mosby Mud Volcano (HMMV), located on the Norwegian-Barents-Svalbard continental margin in 1250 m water depth, has been identified and described as a structure caused by upward transport of mud, pore water and gas (e.g. Eldhohn, O., Sundvor, E., Vogt, P.R., Hjelstuen, B.O., Crane, K., Nilsen, A.K., Gladczenko, T.P., 1999. SW Barents Sea continental margin heat flow and HAkon Mosby Volcano. Geo-Marine Letters 19, 29-37). During R V Polarstern expedition ARK XIX/3b in 2003, an integrated study took place to investigate the detailed morphology, biology, chemistry and geophysical aspects of HMMV (Kiages, M., Thiede, J., Foucher, J.-P., 2004. The …
Thermal regime from bottom simulating reflectors along the north Ecuador-south Colombia margin: Relation to margin segmentation and great subduction earthquakes
( 1) The north Ecuador - south Colombia (NESC) margin has three transverse morphotectonic segments ( the Manglares, Tumaco, and Patia segments), each with different tectonic and structural patterns. Following the 1906 subduction earthquake, the NESC margin has been the site of three megathrust events in 1942, 1958, and 1979 for which the rupture zones abut one another. We first investigated variations in heat flow derived from bottom simulating reflectors (BSR) observed along multichannel seismic lines sampling the three morphotectonic segments. Strong along-strike variations of the BSR- derived heat flow, just landward of the deformation front, suggest that each morphotectonic …
Heat flow in Railroad Valley, Nevada and implications for geothermal resources in the south-central Great Basin
Liquefied vs stratified sediment mobilization processes: Insight from the South of the Barbados accretionary prism
This paper discusses the nature and origin of subsurface sediment mobilization processes in deep marine clay-rich environments. In the studied area of the southern Barbados accretionary prism, new geophysical acquisitions have emphasized the spectacular widespread development of mud volcanoes that are well-developed along ramp anticlines and along sigmoidal rises with trends that are oblique to the axes of the main folds of the accretionary wedge. On some active mud volcanoes, heat-flow measurements show high positive anomalies related to high fluxes of mud transfer. The mobilized solid fraction expelled by the mud volcanoes does not originate from a unique source bed …
Heat flow variations on a slowly accreting ridge: Constraints on the hydrothermal and conductive cooling for the Lucky Strike segment (Mid-Atlantic Ridge, 37 degrees N)
(1) We report 157 closely spaced heat flow measurements along the Lucky Strike segment in the Mid-Atlantic Ridge ( MAR) for ages of the ocean floor between 0 and 11 Ma. On the eastern flank of a volcanic plateau delimiting off-axis and axial domains, the magnitude of heat flow either conforms to the predictions of conductive lithospheric cooling models or is affected by localized anomalies. On the western flank it is uniformly lower than conductive model predictions. We interpret the observed patterns of heat flow by lateral fluid circulation in a highly permeable oceanic basement. The circulation geometries are probably …
Present-day geothermal characteristics in south China
Based on 418 geothermal gradients and 418 heat flow values from South China, both the geothermal gradient map and the heat flow map of South China have been constructed. The present-day distributions of geothermal gradient and heat flow have been analyzed. Statistical analysis of the geothermal gradient data show that the geothermal gradients in South China range from 7.82 to 162.5 degrees C/km with a mean of 24.1 degrees C/km. The southeast coastal regions and southwestern Yunnan are characterized by relatively higher temperature gradients than that of Yangtze,block. The geothermal gradients are controlled by tectonothermal settings and significantly affected by …
Report and preliminary results of poseidon cruise P336: Crests-Cretan Sea tectonics and sedimentation
Geothermal evidence for fluid flow through the gas hydrate stability field off Central Chile-transient flow related to large subduction zone earthquakes?
Thermal structure of the deep Lopra-1/1A borehole in the Faroe Islands
Geophysical and geochemical signatures associated with gas hydrate–related venting in the northern Cascadia margin
This paper presents a comprehensive, multidisciplinary study of cold vents associated with near-seafloor gas hydrate. Several cold vents characterized by seismic blank zones have been identified on the northern Cascadia margin near Ocean Drilling Program (ODP) Site 889/890. The most prominent vent site (Bullseye vent) has been the subject of intense geophysical and geochemical studies, including two- and three-dimensional (2D/3D) seismic imaging, heat flow measurements, piston coring with measurements of sediment physical properties and pore-fluid geochemistry, seafloor video observation, and sampling with the unmanned submersible ROPOS. The main seismically derived constraining observations are: (1) blanking increases with seismic frequency, (2) …
Heat flow in the Colombian Caribbean from the Bottom Simulating Reflector (BSR)
Heat flow and geothermal field in the Qinshui Basin
Based on temperature logging data of 20 boreholes and thermal conductivities of 39 rock samples, 20 heat flow values are calculated for the Qinshui Basin, Shanxi Province, China. The results show that the heat flow values range from 44.8 mW/m(2) to 101.8 mW/m(2), with the average 62.7 +/- 15.2 mW/m(2), and that the present geothermal gradient varies from 20.9 degrees C/km to 47.6 degrees C/km with the mean value of 28.2 +/- 10.3 degrees C/km in the basin. Similarities of the distribution of heat flow to that of coal-bed methane-bearing capacity of the upper and the lower coal beds in …
Heat flow measurements over bottom simulating reflectors, offshore southwestern Taiwan
The submarine accretionary wedge offshore of southwestern Taiwan consists of an intensively deformed upper slope and a lower slope characterized by mostly west-vergent anticlines and thrusts. The fast accumulation of sediment covers and seals organic material before it is oxidized within the accretionary wedge. The bottom simulating reflectors (BSRs) associated with the accretionary prism and imbricate wedge are often observed in marine seismic reflection data from continental slopes and rises. A total of 23 heat flow measurements were carried out along seismic profiles with obvious BSRs offshore of southwestern Taiwan. On average, through sedimentation-correction heat flows have increased by 10%, …
Teplovoe pole Juzhnogo Urala (Thermal field of the South Urals )
Methane hydrate accumulation in "Mound 11" mud volcano, Costa Rica forearc
Shallow gas hydrate accumulation in mud volcanoes in the Costa Rica forearc was postulated before, but is now proven by a find in surface sediments at the southwestern slope of the recently discovered Mound 11, a mud volcano located 30 km arcward from the trench, on the continental slope off Costa Rica at 1000 m water depth. The gas hydrate content of the recovered core was up to 60% and consisted mainly of methane hydrate. The delta(13)C (-45.2 parts per thousand to -43.3 parts per thousand PDB) and delta D (-125 parts per thousand to -143 parts per thousand SMOW) …
Exploration and Assessment of Geothermal Resources at in Hepu Basin in Guangxi
High-resolution heat-flow measurements in the Southern Carnarvon Basin, Western Australia
In June 1999, I undertook a series of heat-flow measurements in the Gascoyne Region of Western Australia. The measurements involved precision temperature logging of stratigraphic boreholes, and thermal conductivity measurements on core samples. Results indicate that the surface heat flow in the onshore Southern Carnarvon Basin is about 55 mW/m(2). This is 3.5 mW/m(2) less than the average heat flow in the Dampier Sub-basin, suggesting that the lithosphere beneath the Dampier Sub-basin may still retain heat from the Mid-Jurassic rifting event. The precision temperature logs suggest that the ground surface temperature across the Gascoyne Region is about 6 degrees C …
Geothermal field and its relation with coalbed methane distribution of the Qinshui Basin
The average geothermal gradient in the Qinshui Basin, Shanxi Province, North China, estimated from temperature logging data of 20 boreholes is 28.2 +/- 1.03 degrees C/km. The thermal conductivities of 39 rock samples are measured and 20 heat flow values are obtained. The estimated heat flow ranges from 44.75 mW/m(2) to 101.81 mW/m(2), with a mean of 62.69 +/- 15.20 mW/m(2). The thermal history reconstruction from the inversion of vitrinite data, using Thermodel for Windows 2004, reveals that the average paleo-heat flow at the time of maximum burial in late Jurassic to early Cretaceous is 158.41 mW/m(2) for the north …
New heat flow data from the immediate vicinity of the Kola super-deep borehole: Vertical variation in heat flow confirmed and attributed to advection
We present new heat flow values and other geothermal data in the upper crystalline crust in the immediate vicinity of the 12.4-km deep Kola super-deep borehole, NW Russia. Our results show a systematic vertical increase in geothermal gradient and heat flow density as deep as we could measure (1.6 km). Our results confirm earlier results on vertical heat flow trends of in the uppermost part of the Kola super-deep hole, and imply that the thermal regime is not in steady-state conductive conditions. In an area of 3-km x 5-km measurements were performed in 1-2-km deep boreholes surrounding the Kola super-deep …