Journal of Asian Earth Sciences: X最新文献_第5页

The P–T–X conditions of staurolite-garnet metabasites, NW Iran: Implications for metamorphism during Arabia-Eurasia collision 伊朗西北部白云石-石榴石偏绿岩的 P-T-X 条件：阿拉伯-欧亚大陆碰撞期间变质作用的影响

Journal of Asian Earth Sciences: X Pub Date : 2024-06-01 Epub Date: 2024-03-10 DOI: 10.1016/j.jaesx.2024.100175

Monir Modjarrad , Donna L. Whitney , Hadi Omrani

{"title":"The P–T–X conditions of staurolite-garnet metabasites, NW Iran: Implications for metamorphism during Arabia-Eurasia collision","authors":"Monir Modjarrad , Donna L. Whitney , Hadi Omrani","doi":"10.1016/j.jaesx.2024.100175","DOIUrl":"https://doi.org/10.1016/j.jaesx.2024.100175","url":null,"abstract":"<div><p>The staurolite-bearing Avajiq metabasites (AMB) crop out near the NW border of Iran with Turkey and contain the peak assemblage garnet + Ca-amphibole + staurolite + biotite + chlorite1 + ilmenite. The AMB record peak pressure–temperature (P-T) conditions of >1 GPa at ∼650 °C; the moderately high pressure is consistent with the presence of staurolite in metabasalt. Garnets exhibit a weak prograde zoning, with relatively homogenous cores and a slight increase in Mg and decrease in Ca, Fe, and Mn toward the rim, consistent with garnet growth during a clockwise P-T path. Texturally late margarite + biotite + muscovite correspond to retrograde P-T conditions of ∼0.5 GPa at ∼500 °C. This stage was followed by further retrogression under greenschist facies conditions recorded by late pumpellyite + paragonite ± calcite. Based on the MORB-like composition of the AMB, it has been unclear whether the metabasites are associated with Neo-Tethyan ophiolites in the area or formed within a continental setting. However, the petrologic association of metabasites with micaschist, gneiss and marble and upper amphibolite facies conditions of metamorphism indicate that the basaltic rocks likely metamorphosed during Arabia-Eurasia continental collision, following consumption of the intervening Neo-Tethys Ocean and emplacement of the ophiolitic rocks in the region.</p></div>","PeriodicalId":37149,"journal":{"name":"Journal of Asian Earth Sciences: X","volume":"11 ","pages":"Article 100175"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590056024000033/pdfft?md5=c645f20f152ecd70d6414eda17ec3b0d&pid=1-s2.0-S2590056024000033-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140069675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Probabilistic seismic hazard assessment for the United Arab Emirates using integrated seismic source model 利用综合震源模型对阿拉伯联合酋长国的地震灾害进行概率评估

Journal of Asian Earth Sciences: X Pub Date : 2024-06-01 Epub Date: 2024-01-29 DOI: 10.1016/j.jaesx.2024.100173

Samer A. Barakat , Mohamed G. Arab , Raghad A. Awad , Dima A. Husein Malkawi , Abdulrahman Metawa , Maher Omar

{"title":"Probabilistic seismic hazard assessment for the United Arab Emirates using integrated seismic source model","authors":"Samer A. Barakat , Mohamed G. Arab , Raghad A. Awad , Dima A. Husein Malkawi , Abdulrahman Metawa , Maher Omar","doi":"10.1016/j.jaesx.2024.100173","DOIUrl":"https://doi.org/10.1016/j.jaesx.2024.100173","url":null,"abstract":"<div><p>This study emphasizes the role of active faults as seismogenic sources in probabilistic seismic hazard assessments (PSHA) in the United Arab Emirates (UAE). An extensive PSHA analysis has been carried out in this study, which incorporates faults alongside area seismic sources within a logic tree-oriented framework. Seismicity is evaluated in terms of spectral acceleration (SA) and Peak ground acceleration (PGA) for return periods of 2,475, 975, and 475 years at 5 % damping. The results are compared with seismic hazard projections derived from previous PSHA studies that utilized only area sources. A key observation is the pronounced impact of the Dibba and Oman range frontal faults on the UAE's northeastern region due to the proximity of the faults. This contributes to higher seismic hazard in this region, with some return periods showing greater hazard levels than those documented in earlier studies. In order to aid seismic hazard design in the UAE, contour maps depicting the SAs at 0.2 and 1.0 s, along with PGA, are developed. The analysis reveals that the highest seismic hazard is predicted along the northeastern borders of the UAE, particularly the coastal area of Ras-Al Khaimah, with a PGA of 0.22 g for a return period of 2,475 years.</p></div>","PeriodicalId":37149,"journal":{"name":"Journal of Asian Earth Sciences: X","volume":"11 ","pages":"Article 100173"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S259005602400001X/pdfft?md5=df1ce81cc468fc1ebc0adc510d683828&pid=1-s2.0-S259005602400001X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139652930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to “Geochemistry of ferromanganese nodules in the soil of Okinawa Island, Japan: Paleoclimatic implications and discrimination scheme of the nodule origins” [J. Asian Earth Sci.: X 8 (2022) 100127] 更正“日本冲绳岛土壤中铁锰结核的地球化学：结核起源的古气候影响和判别方案”[J.Asian Earth Sci.:X 8（2022）100127]

Journal of Asian Earth Sciences: X Pub Date : 2023-12-01 Epub Date: 2023-02-12 DOI: 10.1016/j.jaesx.2023.100141

Keishiro Azami , Kazutaka Yasukawa , Yasuhiro Kato

引用次数: 0

Noise analysis of the observatory superconducting gravimeter in the normal mode frequency range using gravity data of Ghuttu, Garhwal Himalaya, India 利用印度Ghuttu、Garhwal喜马拉雅地区重力数据对天文台超导重力仪在正常模频率范围内的噪声分析

Journal of Asian Earth Sciences: X Pub Date : 2023-12-01 Epub Date: 2023-11-11 DOI: 10.1016/j.jaesx.2023.100165

Sanjay K. Verma , Naresh Kumar , Sanjit K. Pal

{"title":"Noise analysis of the observatory superconducting gravimeter in the normal mode frequency range using gravity data of Ghuttu, Garhwal Himalaya, India","authors":"Sanjay K. Verma , Naresh Kumar , Sanjit K. Pal","doi":"10.1016/j.jaesx.2023.100165","DOIUrl":"https://doi.org/10.1016/j.jaesx.2023.100165","url":null,"abstract":"<div><p>We present a study on gravity data from the Observatory Superconducting Gravimeter (OSG-051) located at MPGO Ghuttu in the Garhwal Himalaya, India. Ambient noise observed at this site is compared with other worldwide SGs and computed seismic noise magnitude for the OSG-051. Instrumental noise has been observed at frequencies ranging from ∼0.0239 to ∼0.03207 Hz in the form of parasitic mode for the lower and upper sensors of SG, whose quality factor has been estimated in different modes of oscillations. The signal is enhanced at noise reduction below 2.0 mHz using local barometric pressure data and modelled tidal effect of the site. Other seismic noise factors are discussed through data analysis of OSG-051. OSG-051 and trillium 240 Broad Band Seismometer data are analysed and compared in the seismic normal mode frequency band. Several observations have been made regarding noise sources that affect the gravity data in the seismic normal mode’s frequency band. Residual gravity data after removal of atmospheric pressure, tidal, and co-seismic effects, respond very well to long-period seismometers than any conventional seismometer. This characteristic and low noise level of the MPGO Ghuttu site makes it a suitable station for long-period seismometer studies.</p></div>","PeriodicalId":37149,"journal":{"name":"Journal of Asian Earth Sciences: X","volume":"10 ","pages":"Article 100165"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590056023000300/pdfft?md5=1c2e0add6ec48bba663946281936c35b&pid=1-s2.0-S2590056023000300-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92047071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Temporal and spatial radiogenic heat production rate of granitic plutons from the Eastern Pontides Orogenic Belt, NE Turkey: Constraints for the geothermal resources 土耳其东北部庞蒂德斯造山带花岗岩深成岩体的时空辐射产热速率：地热资源的制约因素

Journal of Asian Earth Sciences: X Pub Date : 2023-12-01 Epub Date: 2023-07-10 DOI: 10.1016/j.jaesx.2023.100162

Mehmet Arslan, İrfan Temizel, Esra Hatipoğlu Temizel

{"title":"Temporal and spatial radiogenic heat production rate of granitic plutons from the Eastern Pontides Orogenic Belt, NE Turkey: Constraints for the geothermal resources","authors":"Mehmet Arslan, İrfan Temizel, Esra Hatipoğlu Temizel","doi":"10.1016/j.jaesx.2023.100162","DOIUrl":"10.1016/j.jaesx.2023.100162","url":null,"abstract":"<div><p>The evaluation of the geothermal potential of the granitic rocks is important in long-term sustainable renewable energy projects due to increasing energy demand. The Eastern Pontides Orogenic Belt in NE Turkey contains a variety of granitic plutons changing in age, size, and composition. In this paper, we discussed the temporal and spatial distribution of radiogenic heat production by using the contents of heat-producing elements (U, Th, K) of the granitic plutons. The average U, Th, and K concentrations for the granitic plutons are 2.97 ± 0.95 ppm, 13.48 ± 3.48 ppm and 2.69 ± 0.47 wt% for Paleozoic plutons, 1.83 ± 0.98 ppm, 8.58 ± 5.10 ppm and 1.77 ± 0.80 wt% for Jurassic plutons, 5.24 ± 1.64 ppm, 26.02 ± 6.43 ppm and 3.17 ± 0.49 wt% for Cretaceous plutons, and 3.82 ± 0.90 ppm, 15.79 ± 4.27 ppm and 2.88 ± 0.40 wt% for Eocene plutons, respectively. Radiogenic heat production rates are 1.43–2.73 µW/m<sup>3</sup> for Paleozoic plutons, 0.74–1.70 µW/m<sup>3</sup> for Jurassic plutons, 0.66–6.28 µW/m<sup>3</sup> for Cretaceous plutons and 1.15–5.22 µW/m<sup>3</sup> for Eocene plutons. The studied plutons were classified as low- to moderate heat-producing granitoids. However, some Cretaceous and Eocene granitic plutons with radiogenic heat production values of 5.22–6.28 µW/m<sup>3</sup> are considered as high heat-producing granitoids. The thermal indications in the region can be related to radiogenic heat generation and the neotectonic activity of the region. Considering the large volume of the Cretaceous- and Eocene- aged granitic plutons in the Eastern Pontides Orogenic Belt, the moderate to high radiogenic heat production of the granitic plutons in some areas has a significant geothermal impact and can be considered as the potential of enhanced geothermal systems for the future energy demand of the region.</p></div>","PeriodicalId":37149,"journal":{"name":"Journal of Asian Earth Sciences: X","volume":"10 ","pages":"Article 100162"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41576742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Neotethyan Ankara Melange, central Turkey: Formation by accretion of seamounts and supra-subduction zone ophiolites in an oceanic fore-arc setting 土耳其中部新特提斯-安卡拉-梅拉奇：海洋弧前环境中海山和超俯冲带蛇绿岩的增生形成

Journal of Asian Earth Sciences: X Pub Date : 2023-12-01 Epub Date: 2023-06-17 DOI: 10.1016/j.jaesx.2023.100151

Alastair H.F. Robertson , Osman Parlak , Kemal Taslı , Paulian Dumitrica , Timur Ustaömer

引用次数: 0

Geomorphic interpretation on the formation of strike-slip basins along the Northern Sumatran fault 北苏门答腊断层走滑盆地形成的地貌解释

Journal of Asian Earth Sciences: X Pub Date : 2023-12-01 Epub Date: 2023-11-11 DOI: 10.1016/j.jaesx.2023.100167

Aldo Febriansyah Putra , Piyaphong Chenrai

{"title":"Geomorphic interpretation on the formation of strike-slip basins along the Northern Sumatran fault","authors":"Aldo Febriansyah Putra , Piyaphong Chenrai","doi":"10.1016/j.jaesx.2023.100167","DOIUrl":"https://doi.org/10.1016/j.jaesx.2023.100167","url":null,"abstract":"<div><p>This study describes geomorphic expressions and constructs the schematic evolution of the Northern Sumatran Fault based on the development of transverse drainage basins and streams. This fault is a 400-km NW-SE right-lateral strike-slip fault with three segments, namely the Aceh and Seulimeum Faults in the northern section and the Tripa Fault in the southern section. The two faults at the northern section are sub-parallel and they link at the southeast termination of the latter fault. The examination on the geomorphic expressions comprised the fault configuration, stream deflections, and the delineation of landforms based on their genesis and geometry. This study applied drainage basin relief ratio (Rh), drainage basin volume-to-area ratio (R<sub>va</sub>), and transverse stream profile analysis (normalized stream profile, qualitative interpretation of the profile shapes, stream concavity index (SCI), stream gradient, and knickpoint distribution) for investigating the development of transverse drainage basins and streams. For constructing the schematic evolution, this study evaluates drainage maturity level from the applied methods to interpret relative timing of basin formation. This study suggests that the Aceh and Tripa Faults constituted the initial configuration and they propagated to the southeast and northwest, respectively, before merging. The Seulimeum Fault, which formed subsequently, propagated to the northwest after merging with the Aceh Fault at its southeast termination. This study also infers that fault section with lower drainage maturity coincides with greater numbers of earthquakes.</p></div>","PeriodicalId":37149,"journal":{"name":"Journal of Asian Earth Sciences: X","volume":"10 ","pages":"Article 100167"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590056023000324/pdfft?md5=d0951f70d27735f93f6780cbf8f7dfe3&pid=1-s2.0-S2590056023000324-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134656449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Landslide ground model development through integrated geoelectrical and seismic imaging in Thungsong district, Nakhon Si Thammarat, Thailand 通过综合地电和地震成像在泰国Nakhon Si Thammarat Thungsong地区开发滑坡地面模型

Journal of Asian Earth Sciences: X Pub Date : 2023-12-01 Epub Date: 2023-11-29 DOI: 10.1016/j.jaesx.2023.100168

C Sujitapan , J.M. Kendall , J.E. Chambers , S Yordkayhun

{"title":"Landslide ground model development through integrated geoelectrical and seismic imaging in Thungsong district, Nakhon Si Thammarat, Thailand","authors":"C Sujitapan , J.M. Kendall , J.E. Chambers , S Yordkayhun","doi":"10.1016/j.jaesx.2023.100168","DOIUrl":"https://doi.org/10.1016/j.jaesx.2023.100168","url":null,"abstract":"<div><p>A ground model of a shallow landslide in rainfall-induced slope failure of Thungsong, Nakhon Si Thammarat, southern Thailand is developed through an integrated geophysical approach, utilising electrical resistivity tomography and P-wave seismic refraction tomography (SRT) methods. Those two methods were applied to assess landslide structure and study deformation mechanisms along four profiles. Beside the four profiles there is another profile, which was acquired near an borehole and used for the calibration with geological data. Our results show subsurface structures in terms of the ground model used to determine stratigraphic layers, zones of saturation or groundwater table, and significant differences between the landslide slip material and the underlying bedrock. The clay-rich zones (resistivity less than 500 Ωm) in the colluvium on the relatively steep slope, show enhanced potential for landslides. This silty clay plays an important role for landslide activation in this site. Moreover, a combination of steep slopes, shallow basement rocks overlain by clay-rich colluvium, and seasonally high rain fall leads to landslides in the region. The ground model produced by geophysical imaging for this region achieves a comprehensive understanding of the structure and lithology of a complex landslide system and overcomes the limitations of remote-sensing data or isolated intrusive sampling techniques alone.</p></div>","PeriodicalId":37149,"journal":{"name":"Journal of Asian Earth Sciences: X","volume":"10 ","pages":"Article 100168"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590056023000336/pdfft?md5=f19106b79f4bdec599121bc85eee49a5&pid=1-s2.0-S2590056023000336-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138474869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to “Petrology of the Paleogene shoshonitic volcanism in north Sarab area, NW Iran: Geochemical, Ar-Ar dating and Sr-Nd-Pb isotopic constraints” [J. Asian Earth Sci.: X 8 (2022) 100109] 伊朗北部Sarab地区古近系松玄岩火山岩岩石学:地球化学、Ar-Ar测年和Sr-Nd-Pb同位素约束[J]。亚洲地球科学。[x 8 (2022) 100109]

Journal of Asian Earth Sciences: X Pub Date : 2023-12-01 Epub Date: 2023-03-17 DOI: 10.1016/j.jaesx.2023.100145

Somaye Heidari , Amir Ali Tabbakh Shabani , Shohreh Hassanpour , Reza Maghdour-Mashhour

引用次数: 0

Geochemistry of the siliciclastic sediments in the Barak basin, Indo-Burma Range, India: Insights into provenance, paleoclimate, and depositional history 印度-缅甸山脉巴拉克盆地的硅质碎屑沉积物地球化学:对物源、古气候和沉积史的认识

Journal of Asian Earth Sciences: X Pub Date : 2023-12-01 Epub Date: 2023-07-08 DOI: 10.1016/j.jaesx.2023.100161

Angom Sangeeta , Oinam Kingson , Bhupendra S. Yadav , N. Pandey , Ngangom Romario Meitei

{"title":"Geochemistry of the siliciclastic sediments in the Barak basin, Indo-Burma Range, India: Insights into provenance, paleoclimate, and depositional history","authors":"Angom Sangeeta , Oinam Kingson , Bhupendra S. Yadav , N. Pandey , Ngangom Romario Meitei","doi":"10.1016/j.jaesx.2023.100161","DOIUrl":"10.1016/j.jaesx.2023.100161","url":null,"abstract":"<div><p>Sedimentation of the Paleogene and Neogene belts in the Indo-Burma Range (IBR) involved a complex tectonic system letting provenance of both the belts poorly constrained. We made an attempt to investigate provenance, tectonic setting, paleoclimate, and depositional environment of the Renji Formation (Paleogene belt) and the Bhuban Formation (Neogene belt) in the Barak basin of western Manipur employing whole-rock geochemistry and petrography. A semi-arid climatic condition has been indicated for the weathering and liberation of sediments in the source terrain. Derivation of first cycle sediments from mafic and felsic rocks with minor contribution from the metamorphic rocks is suggested but the former seems to have dominated the Renji Formation. A shift in the provenance vis-a-vis differential chemical weathering of the mafic-felsic rocks at the source is attributed. Research results also suggest supply from deformed and elevated craton, presumably the Indian craton, during the Himalayan orogeny. Sedimentation of the Renji Formation took place in a sub-oxic deltaic environment in contrast to the Bhuban Formation which developed in an oxic shallow marine mixed tidal flat environment.</p></div>","PeriodicalId":37149,"journal":{"name":"Journal of Asian Earth Sciences: X","volume":"10 ","pages":"Article 100161"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48414659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0