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Pleistocene glaciomarine laminated muds in the Central Basin of the northwestern Ross Sea and their palaeoceanographic records 罗斯海西北部中部盆地更新世冰海叠层泥及其古海洋学记录

3区地球科学

Terra Nova Pub Date : 2023-10-20 DOI: 10.1111/ter.12688

Boo‐Keun Khim, Young Kwan Sohn, Min Kyung Lee, Sunghan Kim, Jae Il Lee, Kyu Cheul Yoo

{"title":"Pleistocene glaciomarine laminated muds in the Central Basin of the northwestern Ross Sea and their palaeoceanographic records","authors":"Boo‐Keun Khim, Young Kwan Sohn, Min Kyung Lee, Sunghan Kim, Jae Il Lee, Kyu Cheul Yoo","doi":"10.1111/ter.12688","DOIUrl":"https://doi.org/10.1111/ter.12688","url":null,"abstract":"Abstract Glaciomarine laminated muds around the Antarctic continental margin are important in the marine geological record related to ice sheet dynamics. Microscopic observation and backscattered electron imagery of Pleistocene laminated muds in the Central Basin (Ross Sea) reveal that the light laminae comprise terrigenous angular to subangular silt‐sized particles, scattered diatom fragments, and eroded sand‐sized lumps of fossil‐bearing mud. In contrast, the dark laminae are clayey and biogenic with very tiny pieces of fossils. These laminated muds are interpreted to have been deposited by subglacial meltwater plumes underneath the advancing glaciers that torn off the earlier‐deposited and semi‐consolidated diatom‐rich sediments. Thus, most biogenic components of these laminated muds were recycled from older deposits, indicating that they are not related to enhanced biological production during the mud deposition. Our study suggests that the recycling of biogenic particles should be considered when interpreting the palaeoclimatic and palaeoceanographic implications of Antarctic environmental system.","PeriodicalId":22260,"journal":{"name":"Terra Nova","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135570231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Linking rifted margin crustal shape with the timing and volume of magmatism 将裂谷边缘地壳形态与岩浆活动的时间和规模联系起来

3区地球科学

Terra Nova Pub Date : 2023-10-13 DOI: 10.1111/ter.12690

Pauline Chenin, Simon Tomasi, Nick Kusznir, Gianreto Manatschal

引用次数: 0

Episodic Late Cretaceous to Neogene crustal thickness variation in southern Tibet 西藏南部晚白垩世—新近纪地壳厚度幕式变化

3区地球科学

Terra Nova Pub Date : 2023-10-12 DOI: 10.1111/ter.12689

Kurt E. Sundell, Andrew K. Laskowski, Caden Howlett, Paul Kapp, Mihai Ducea, James B. Chapman, Lin Ding

引用次数: 0

High positive carbonate carbon isotope excursion identified in the North China Craton: Implications for the Lomagundi–Jatuli Event 华北克拉通高正碳酸盐碳同位素偏移:对Lomagundi-Jatuli事件的启示

3区地球科学

Terra Nova Pub Date : 2023-10-05 DOI: 10.1111/ter.12687

Shuan‐Hong Zhang, Hong‐Yu Wang, Hao‐Shu Tang, Yu‐Hang Cai, Ling‐Hao Kong, Jun‐Ling Pei, Qi‐Qi Zhang, Guo‐Hui Hu, Yue Zhao

{"title":"High positive carbonate carbon isotope excursion identified in the North China Craton: Implications for the <scp>Lomagundi–Jatuli</scp> Event","authors":"Shuan‐Hong Zhang, Hong‐Yu Wang, Hao‐Shu Tang, Yu‐Hang Cai, Ling‐Hao Kong, Jun‐Ling Pei, Qi‐Qi Zhang, Guo‐Hui Hu, Yue Zhao","doi":"10.1111/ter.12687","DOIUrl":"https://doi.org/10.1111/ter.12687","url":null,"abstract":"Abstract Records of the Lomagundi–Jatuli Event (LJE) are well preserved globally, but high δ 13 C carb carbonates have not been identified in the North China Craton (NCC). Our results on ~ 3–4 km thick carbonates from the newly confirmed Palaeoproterozoic successions in Fanhe Basin in the northeastern NCC show that the ~2.20–2.06 Ga carbonates have positive carbon isotope excursion and those deposited after 2.06 Ga have normal carbon isotope. Specially, carbonates from the Daposhan Formation have δ 13 C carb values of 10.2‰–11.8‰, which is the largest positive carbon isotope excursion in the NCC. The ~2.20–2.06 Ga carbonates in Fanhe Basin have similar δ 13 C carb values as those contemporaneously deposited in other cratons and their δ 13 C carb values exhibit a decreasing trend from ~2.20 Ga to 2.06 Ga. Our identification of carbonates with high positive δ 13 C carb values in Fanhe Basin not only casts new lights on records of the LJE in the NCC, but also provides important constraints on global significance of the positive δ 13 C carb excursion of LJE.","PeriodicalId":22260,"journal":{"name":"Terra Nova","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135482853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Storage in the deep aquifer: Stochastic process in time and frequency domain using groundwater level response to seismic activation of the Tohoku earthquake, Japan, 2011 深层蓄水:基于2011年日本东北地震地震激活的地下水位响应的时频随机过程

3区地球科学

Terra Nova Pub Date : 2023-10-03 DOI: 10.1111/ter.12686

David Ching‐Fang Shih

{"title":"Storage in the deep aquifer: Stochastic process in time and frequency domain using groundwater level response to seismic activation of the Tohoku earthquake, Japan, 2011","authors":"David Ching‐Fang Shih","doi":"10.1111/ter.12686","DOIUrl":"https://doi.org/10.1111/ter.12686","url":null,"abstract":"Abstract This study delves into the interplay of Rayleigh wave‐groundwater‐aquifer dynamics, utilizing seismic data from designated stations, particularly the magnitude 9 event on March 11, 2011 (02:46:23 PM epicenter), Tohoku earthquake, Japan. Auto spectra uncover significant peaks, linking groundwater level with the vertical motion of Rayleigh waves. High coherence between groundwater levels and seismogram vertical displacements confirms this connection. Coherence analysis validates it at the significant frequency bands. Groundwater storage coefficient estimation aligns with typical values of confined aquifers, ranging from 1.0E‐05 to 1.0E‐03. This consistency applies across different methods and other earthquake events, highlighting seismic impact. The findings enhance understanding of aquifer behavior during seismic events, aiding groundwater management and earthquake readiness in susceptible regions. Further research should expand datasets for coefficient accuracy. Insights advance aquifer behavior comprehension during seismic events, guiding groundwater management and earthquake readiness in prone areas.","PeriodicalId":22260,"journal":{"name":"Terra Nova","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135739576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of tidal friction on the motion of lithospheric plates and earthquake activity 潮汐摩擦对岩石圈板块运动和地震活动的影响

3区地球科学

Terra Nova Pub Date : 2023-09-29 DOI: 10.1111/ter.12685

Csilla Fodor, Péter Varga, Nico Sneeuw

引用次数: 0

Geo‐thermochronological analysis reveals transition from transverse to axial detrital inputs during Cretaceous rifting in the Songliao Basin, NE China 地球热年代学分析揭示了松辽盆地白垩纪裂陷时期碎屑输入由横向向轴向转变

3区地球科学

Terra Nova Pub Date : 2023-09-25 DOI: 10.1111/ter.12682

Nan Wang, Zhiyong Zhang, Marco G. Malusà, Jien Zhang, Lin Wu, Dunfeng Xiang, Wenjiao Xiao

{"title":"Geo‐thermochronological analysis reveals transition from transverse to axial detrital inputs during Cretaceous rifting in the Songliao Basin, <scp>NE</scp> China","authors":"Nan Wang, Zhiyong Zhang, Marco G. Malusà, Jien Zhang, Lin Wu, Dunfeng Xiang, Wenjiao Xiao","doi":"10.1111/ter.12682","DOIUrl":"https://doi.org/10.1111/ter.12682","url":null,"abstract":"Abstract The impact of tectonics, volcanism and climate in controlling temporal and spatial variations in rift‐basin sedimentation is still poorly understood. Here, we tackle this issue by the analysis of mid‐Cretaceous sediments deposited in the Songliao Basin, northeastern China. We present new zircon U–Pb, apatite fission‐track and trace‐element data from the northeastern basin, which are discussed within the framework of the published geochronology dataset. Our results reveal a major provenance change from syn‐rift tectonic extension to post‐rift thermal subsidence at ~103 Ma. During the syn‐rift stage, the detrital inputs were dominantly from transverse rivers sourced from the surrounding mountains including graben shoulders and volcanoes. During the post‐rift stage and coeval thermal subsidence, the basin sedimentation was controlled by coexisting transverse and axial drainage systems sourced from uplifting regions in the south. We conclude that tectonics, not climate, exerted a major control in sediment provenance change in the mid‐Cretaceous Songliao Basin.","PeriodicalId":22260,"journal":{"name":"Terra Nova","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135815486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A craton‐like subcontinental lithospheric mantle beneath the Trans‐North China Orogen revealed by the ca. 1.54 Ga kimberlites 由约1.54 Ga金伯利岩揭示的跨华北造山带下类似克拉通的次大陆岩石圈地幔

3区地球科学

Terra Nova Pub Date : 2023-09-21 DOI: 10.1111/ter.12683

Yu‐Sheng Zhu, Jin‐Hui Yang, Qiu‐Li Li, Hao Wang, Ya‐Dong Wu, Fu‐Yuan Wu

引用次数: 0

Geophysical‐petrological modelling of the crust and upper mantle structure across the North‐South Gravity Lineament in NE China: Insights into the lithospheric thinning mechanism 中国东北南北重力线地壳和上地幔结构的地球物理岩石学模拟:对岩石圈减薄机制的洞察

3区地球科学

Terra Nova Pub Date : 2023-09-20 DOI: 10.1111/ter.12684

Sheng Zhu, Yangfan Deng, Zhou Zhang, Xin Li

{"title":"Geophysical‐petrological modelling of the crust and upper mantle structure across the North‐South Gravity Lineament in <scp>NE</scp> China: Insights into the lithospheric thinning mechanism","authors":"Sheng Zhu, Yangfan Deng, Zhou Zhang, Xin Li","doi":"10.1111/ter.12684","DOIUrl":"https://doi.org/10.1111/ter.12684","url":null,"abstract":"Abstract The North‐South Gravity Lineament (NSGL), characterized by an abrupt variation in both the Bouguer gravity anomaly and topography, acts as a significant geological boundary in eastern China. The formation of such a lateral feature is believed to be associated with lithospheric thinning. The Songliao Basin (SLB) is considered to mark the centre of the lithospheric thinning in Northeast China, whereas its thinning mechanism remains unclear. Here we perform integrated geophysical‐petrological modelling of the crust and upper mantle structure along a passive‐source seismic profile crossing the NSGL, to understand the thinning mechanism beneath the SLB based on the constructed lithospheric extension and delamination models. Our delamination model identifies the compositional variation across the NSGL and the S‐wave velocity signature dominated by high velocity beneath the SLB, which are compatible with previous geochemical and geophysical results. The multidisciplinary analyses suggest that the lithospheric delamination is a plausible mechanism to account for the thinning to the east of the NSGL. The resulting model also shows that the NSGL is a lithospheric‐scale geophysical and geochemical boundary separating two distinct structural domains. In combination with previous evidence, structural discrepancies across the NSGL can be attributed to the lithospheric delamination driven by the subduction of the Palaeo‐Pacific plate.","PeriodicalId":22260,"journal":{"name":"Terra Nova","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136308849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Two Paleoproterozoic tectono‐thermal events in the Central Orogenic belt, North China craton, determined from EPMA Th–U–Pb monazite geochronology of the Zanhuang massif 华北克拉通中央造山带两次古元古代构造热事件——以赞黄地块的EPMA Th-U-Pb独石年代学为依据

IF 2.4 3区地球科学

Terra Nova Pub Date : 2023-08-31 DOI: 10.1111/ter.12680

Junpeng Wang, Yunzhe Jiao, K. Jiang, T. Kusky, Lu Wang, H. Deng

引用次数: 0