Determination of a normal orogenic palaeo-geothermal gradient with clay mineral and organic matter indices: a review by Rafael Ferreiro Mählmann, Meinert Rahn, Sébastien Potel, Lan Nguyen-Thanh, Rainer Petschick

“…Data selection was based on a normal geothermal gradient (25 to 35 °C/km) as determined in previous studies, e.g. by maturity modelling and clay mineral reaction progress calculations. …”
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Correction: Determination of a normal orogenic palaeo-geothermal gradient with clay mineral and organic matter indices: a review by Rafael Ferreiro Mählmann, Meinert Rahn, Sébastien Potel, Lan Nguyen-Thanh, Rainer Petschick

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Geospatial modeling of near subsurface temperatures of the contiguous United States for assessment of materials degradation by Jonathan E. Gordon, Olatunde D. Akanbi, Deepa C. Bhuvanagiri, Hope E. Omodolor, Vibha Mandayam, Roger H. French, Jeffrey M. Yarus, Erika I. Barcelos

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Impact of High Thermal Setting and Fluid Activities on Sandstone Compaction: A Case Study of the Baiyun Sag in the Pearl River Mouth Basin (Northern South China Sea) by Chi Li, Jinglan Luo, Caiwei Fan, Shanshan Li, Shijiu Wu, Chuan Lei, Kunpeng Song

“…The result shows that the compaction mode of sandstone reservoirs in the Zhuhai Formation is dominated by static compaction in the LGR (the low geothermal gradient region), whereas the diagenetic process of the Zhuhai Formation in the MGR (the moderate geothermal gradient region) and HGR (the high geothermal gradient region) is affected not only by the static compaction effect but also by the thermal compaction effect caused by abnormal formation temperature and pressure conditions. …”
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Influence of Compositional Gradient Effect on Tight Condensate Gas Reservoir Development by Jing Chen, Xinmin Song, Baozhu Li, Xiaoli Luo, Youjing Wang, Jinfang Wang

“…Anisothermal compositional gradient theory is used to analyze the main factors influencing the compositional gradient distribution to understand the basic regularities of the compositional variation with depth. Geothermal gradient, fluid composition, reservoir temperature, and reservoir pressure will affect the compositional gradient, of which geothermal gradient has the most direct and obvious influence. …”
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Geofluids Assessment of the Ayub and Shafa Hot Springs in Kopet-Dagh Zone (NE Iran): An Isotopic Geochemistry Approach by Hossein Mohammadzadeh, Majid Kazemi

“…This indicates that the heat source cannot be related to volcanic activities (with average δ18O value of about 5‰) and it is most probably associated with geothermal gradient with deep circulation of groundwater through faults. …”
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Integrated Remote Sensing and Geophysical Investigations of the Geodynamic Activities at Lake Magadi, Southern Kenyan Rift by Akinola Adesuji Komolafe, Zacharia Njuguna Kuria, Tsehaie Woldai, Marleen Noomen, Adeleye Yekini Biodun Anifowose

“…The relative shallowness implies a high geothermal gradient evidenced in the surface manifestations of hot springs along the lake margins. …”
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Potential and challenges of underground CO2 storage via in-situ mineralization in Switzerland by Adrian Martin, Viola Becattini, Chiara Marieni, Salka Kolbeinsdóttir, Marco Mazzotti, Thanushika Gunatilake

“…The old, altered, and metamorphic nature of the alpine mafic and ultramafic rock formations results in minimal permeability and porosity, consequently impeding CO2 injectivity and mineralization kinetics, particularly given the low average geothermal gradient. Additionally, challenges related to water resource requirements, storage site location and accessibility, financial costs, regulation, social acceptance, and environmental impacts further impact feasibility negatively. …”
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Study on the Occurrence of Double Bottom Simulating Reflectors in the Makran Accretionary Zone by Jiangxin Chen, Wenyu Zhao, Siyou Tong, Leonardo Azevedo, Nengyou Wu, Bin Liu, Huaning Xu, Jianming Gong, Jing Liao, Jie Liang, Dongxu Luo, Yu Fu

“…Also, the residual paleo-BSR migrates upward due to the increase in local geothermal gradient caused by diapirs and gas chimney thermal fluids.…”
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First evidence of sinter and travertine in Cameroon: fault reactivation and geothermal implications by Tchouatcha, Milan Stafford, Kouske, Arnaud Patrice, Tamfuh, Primus Azinwi, Préat, Alain, Toyama, René, Feumba, Roger, Tiokeng Ngounfack, Vannelle, Madjingain, Vivant, Konglim, Yaya Berinyuy, Tchameni, Rigobert

“…$\delta ^{13}\mathrm{C}$ and ${\delta }^{18}\mathrm{O}$ values, ranging respectively from 1.5‰ to 2.9‰ V-PDB and ${-}$10.1‰ to ${-}$6‰ V-PDB, reflect a high temperature of the parent solution (40 °C) related to an elevated geothermal gradient. The europium anomalies values (Eu/Eu*: 0.54–1.78) indicate the temperature variation of precipitated deposits related to distance of the deep hot water flow. …”
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Geological Characterisation of Depleted Oil and Gas Reservoirs for Carbon Sequestration Potentials in a Field in the Niger Delta, Nigeria by Ajoke Celinah Ojo, Akaha Celestine Tse

“…The reservoir depth of at least 800 m, porosity and permeability of more than 10 percent and 20 mD, and a caprock thickness of at least 10 m, in addition to geothermal gradients of 13.46 to 33.66oC /km are the ideal conditions for the efficacy of storage. …”
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Geological Characterisation of Depleted Oil and Gas Reservoirs for Carbon Sequestration Potentials in a Field in the Niger Delta, Nigeria by Ajoke Celinah Ojo, Akaha Celestine Tse

“…The reservoir depth of at least 800 m, porosity and permeability of more than 10 percent and 20 mD, and a caprock thickness of at least 10 m, in addition to geothermal gradients of 13.46 to 33.66oC /km are the ideal conditions for the efficacy of storage. …”
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Extension of continental lithosphere in rifted margins: a review of thinning mechanisms by Tugend, Julie, Mohn, Geoffroy, Duretz, Thibault, Petri, Benoit, Le Pourhiet, Laetitia

“…., Iberia–Newfoundland) while wide lithospheric thinning modes better apply to marginal seas characterized by higher initial geothermal gradients (e.g., South China Sea). Finally, we also emphasize that continental lithosphere thinning is depth-dependent, part of which is transient and cannot easily be measured in natural systems.…”
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