Literature Review

Тепловое поле юго-восточной части Днепровского бассейна Днепровско-Донецкой впадины. Доповіді НАН України (Thermal field of the southeastern part of the Dnieper basin of the Dnieper-Donets Basin).

The values of the deep heat flow were studied in 182 boreholes. They are grouped into 104 points. The resulting densification of the network eliminates some of the “white spots” in the study of the heat flow of the south-eastern part of the DDD. A chain of positive anomalies of the heat flow exceeding 50 mW/m2 is assigned to the south-western boundary DDD fault. Near the center of the region, the highest heat flows exceed 70 mW/m2. The negative heat flow anomalies are common in the region considerably wider. Some of them tend to the activated fault zones. The analysis …

Metodika rascheta glubinnyh temperatur s uchetom ispravlennyh na vlijanie paleoklimata znachenij teplovogo potoka (Method for deep temperature estimation with regard to the paleoclimate influence on heat flow )

The building and stabilization of an Archean Craton in the Superior Province, Canada, from a heat flow perspective

How continental lithosphere responds to tectonic stresses and mantle convective processes is determined in large part by its mechanical strength and temperature distribution, which depend on crustal heat production. In order to establish reliable crustal and thermal models for the Superior Craton, Canadian Shield, new measurements of heat flux and heat production in 28 deep boreholes at 16 sites are combined with a larger set of older data. The Superior Province was assembled by the docking of volcanic/plutonic and metasedimentary terranes and continental fragments to the southern margin of an older core around 2.7Ga. The average heat flux is much …

The first deep heat flow determination in crystalline basement rocks beneath the Western Canadian Sedimentary Basin

Heat flow (Q) determined from bottom-hole temperatures measured in oil and gas wells in Alberta show a large scatter with values ranging from 40 to 90 mW m(-2). Only two precise measurements of heat flow were previously reported in Alberta, and were made more than half a century ago. These were made in wells located near Edmonton, Alberta, and penetrated the upper kilometre of clastic sedimentary rocks yielding heat flows values of 61 and 67 mW m(-2) (Garland & Lennox). Here, we report a new precise heat flow determination from a 2363-m deep well drilled into basement granite rocks just …

Geotermicheskie i batimetricheskie issledovanija v buhte Broutona (vulkan Uratman, o Simushir, Kuril'skie o-va) (Geothermal and bathymetric studies in Broughton Bay (Uratman Volcano, Simushir Island, Kuril Islands) )

Struktura teplovogo polya Pripyatskogo progiba (Structure of the Heat Field of the Pipyatsky Bend)

Heat flow in the rifted continental margin of the South China Sea near Taiwan and its tectonic implications

Temperature measurements carried out on 9 hydrocarbon exploration boreholes together with Bottom Simulating Reflectors (BSRs) from reflection seismic images are used in this study to derive geothermal gradients and heat flows in the northern margin of the South China Sea near Taiwan. The method of Horner plot is applied to obtain true formation temperatures from measured borehole temperatures, which are disturbed by drilling processes. Sub-seafloor depths of BSRs are used to calculate sub-bottom temperatures using theoretical pressure/temperature phase boundary that marks the base of gas hydrate stability zone. Our results show that the geothermal gradients and heat flows in the …

Heat Flow in the Campos Sedimentary Basin and Thermal History of the Continental Margin of Southeast Brazil

Marine Heat Flow Investigation at the Ulleung Basin (East Sea/Sea of Japan), the Northeastern Continental Slope of Sakhalin Island (Sea of Okhotsk), and the Canterbury Basin (New Zealand)

지구과학에서 해양지열류량을 ì •í™•ížˆ ì¶”ì •í•˜ëŠ” 것은 중요한 사항인데, 이는 지열류량이 지구의 ë™ì—­í•™ì ì¸ 활동을 í¬ì°©í• ë¿ë§Œ 아니라 자연 자원 측면에서 온도 프로파일은 í•„ìˆ˜ì ì¸ 요소이기 때문이다. 지열류량 ì¶”ì •ì—ëŠ” ì—´ì „ë„ë„ì™€ 지온경사도의 ì¸¡ì •ì´ 필요한데, 이 ì¸¡ì •ì´ 비용효율성이 좋지 않기에 종종 실측값 ëŒ€ì‹ ê²½í—˜ì ì¸ 근사치가 이용되는 경우가 많다. 울릉분지, 북동 ì‚¬í• ë¦° 대륙사면, ê·¸ë¦¬ê³ ìº”í„°ë² ë¦¬ 분지 세 지역에서의 ì‹¤ì œ 사례 연구들을 통해 해양지열류량의 올바른 ì¶”ì •ê³¼ 가스 í•˜ì´ë“œë ˆì´íŠ¸ 분야를 비롯하여 여러 활용 가능성을 다뤄보았다. 2007ë…„ 7ì›”, 가스 í•˜ì´ë“œë ˆì´íŠ¸ 연구의 일환으로 동해 울릉 분지의 남쪽과 중앙 부분의 10ì§€ì  (HF01-10)에서 새로운 í•´ì–‘ 지열 자료가 …

Heat Flow and Fluid Flux in Cascadia's Seismogenic Zone

The Cascadia Subduction Zone in the northeast Pacific has generated a large number of megathrust earthquakes and poses the greatest recognized seismic hazard to the northwestern United States. To learn more about the risks this subduction zone poses, scientists from Washington and Oregon conducted a research cruise in August aboard the R/V Atlantis to collect data that would estimate the thermal structure of the “fully locked zone” of the Cascadia megathrust fault. This locked zone resists the continuous motion of two tectonic plates as they collide, storing compressional energy that produces large megathrust earthquakes when released by the abrupt failure …

Heat Flow Determinations for the Australian Continent: Release 5

Étude du flux de chaleur des systémes hydrothermaux d'une partie de la dorsale médio-atlantique (35°N)

Heat flow measurements on the Lomonosov Ridge, Arctic Ocean

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 resistivitytemperature 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 …

Тепловые модели тектоносферы (Thermal models of the tectonosphere)

Characteristics of Heat Flow and Lithospheric Thermal Structure in the Junggar Basin, Northwestern China

Heat flow data from the southeast of South Australia: distribution and implications for the relationship between current heat flow and the Newer Volcanics Province

This paper presents the results of 34 new heat flow estimates taken in 2004 from 16 water bores and 18 petroleum exploration wells in the western Otway Basin. The average estimated heat flow measured across the study area is 65.6 +/- 9.4 mW/m(2), with a range of 42-90 mW/m(2). There are three recognisable sectors within the study area where heat flow is slightly elevated relative to the background levels. These sectors can be broadly classified as Mount Schank (73.5 +/- 0.5 mW/m(2)), Mount Burr (71.2 +/- 7.6 mW/m(2)) and Beachport (78.3 +/- 10.4 mW/m(2)). Thermal conductivity values for each unit …

Curie point depth in Venezuela and the Eastern Caribbean

We estimate the Curie point depth (CPD) variations of Venezuela (continental crust, South American plate) and the Eastern Caribbean (oceanic crust, Caribbean Plate) by using spectral analysis of the magnetic anomalies, extracted from the 2010 Enhanced Magnetic Model (EMM2010), available at the National Oceanic and Atmospheric Administration (NOAA). To test the reliability of the spectral content of this model, for a small region, we compare he CPD derived from the EMM2010 against the one from aeromagnetic data. We also compile heat flow data from previous studies to correlate them with the CPD lateral variations. The estimations show that the CPD …

High heat flow and ocean acidification at a nascent rift in the northern Gulf of California

The prevailing tectonic setting in the Gulf California suggests the presence of an undetermined number of short spreading centres with associated hydrothermal systems. However, to date, active seafloor spreading phenomena have been documented in only three of the eight tectonically active basins. Here we report heat flow values as high as 15,436 mW m−2 in two of the northernmost basins of the Gulf of California, providing evidence of intense hydrothermal activity associated with the transition from continental rifting to seafloor spreading. The mean heat flow for the Wagner and Consag basins area is 1,875 mW m−2, more than 15 times …

Novoe obobshhenie geotermicheskih dannyh po territorii Sibiri i Dal'nemu Vostoku (New generalization of geothermal data on the territory of Siberia and the Far East )

The thermal structure of Israel and the Dead Sea Fault

In this paper we analyze temperature data from all the available oil and water wells in Israel and compare the results with seismicity depth and with heat flux estimation from xenoliths. We show that the average heat flux in Israel is 40-45 mW/m(2), consistent with measurements of the Arabian Shield. A heat flux anomaly exists in Northern Israel and Jordan. This could be attributed to groundwater flow or young magmatic activity (similar to 100,000 years) that is common in this area. A higher heat flux exists in Southern Israel and Jordan, probably reflecting the opening of the Red Sea and …