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RETRACTION: Structural Characteristics and Development Model of Fluid Diapirs Within the Structural Transition Zone, Northern South China Sea 回流:南海北部构造过渡带流体暗礁的构造特征与发育模式
IF 1.4 4区 地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY Pub Date : 2024-09-20 DOI: 10.1002/gj.5062

RETRACTION: Y. Qin, C. Liu, G. Peng, L. Huang, C. Liang, H. Li, Z. Wu and L. Yang, “ Structural Characteristics and Development Model of Fluid Diapirs Within the Structural Transition Zone, Northern South China Sea,” Geological Journal 59, no. 7 (2024): 19061923, https://doi.org/10.1002/gj.4968.

The above article, published online on 28 April 2024 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by agreement between the authors; the journal Editor-in-Chief, Ian D. Somerville and Yunpeng Dong; and John Wiley & Sons Ltd. The retraction has been agreed as some of the data included within the article was not authorized for publication. Furthermore, the authors are not confident that the fluid diapir labels shown in figure 7 are correct and admit they may be problematic. As a result the editors have decided to retract this article.

返回:Y.Qin, C. Liu, G. Peng, L. Huang, C. Liang, H. Li, Z. Wu and L. Yang, " Structural Characteristics and Development Model of Fluid Diapirs Within the Structural Transition Zone, Northern South China Sea," Geological Journal 59, no: 1906-1923, https://doi.org/10.1002/gj.4968.The 上述文章于 2024 年 4 月 28 日在线发表于 Wiley Online Library (wileyonlinelibrary.com),经作者、期刊主编 Ian D. Somerville 和 Yunpeng Dong 以及 John Wiley & Sons Ltd.(约翰-威利父子有限公司)协商,已被撤回。之所以同意撤稿,是因为文章中的部分数据未经授权发表。此外,作者对图 7 中显示的流体二叠纪标签的正确性缺乏信心,并承认这些标签可能存在问题。因此,编辑决定撤回这篇文章。
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引用次数: 0
Hf Isotopes and Detrital Zircon Geochronology of the Silasia Formation, Midyan Terrane, Northwestern Arabian Shield: An Investigation of the Provenance History 阿拉伯地盾西北部米迪安地层 Silasia 地层的 Hf 同位素和锆英岩地质年代:来源历史调查
IF 1.8 4区 地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY Pub Date : 2024-09-12 DOI: 10.1002/gj.5053
Osama K. Dessouky, Kamal A. Ali, Mahmoud M. Hassan
U–Pb ages and Hf isotopic data from detrital zircon of the Silasia Formation in the Midyan Terrane record evidence for the provenance and tectonic evolution of the northern Arabian Shield. Given that the youngest acknowledged age of these detritus sediments is 735 ± 13 Ma, it is likely that the Silasia Formation was deposited during the closure of the Mozambique Ocean. The U–Pb ages define a major Mesoproterozoic peak, with two minor peaks of Neoproterozoic and Archean age. Combined with zircon Hf isotopic compositions, the sedimentary detritus of the Silasia Formation was mainly derived from source rocks formed during the Grenville Orogeny during the assembly of Rodinia, with a minor contribution from Archean and Paleoproterozoic crustal material, in addition to a limited arc‐basement supply related to the early Mozambique Ocean. The youngest Concordia age of 735 ± 13 Ma with highly variable εHf(t) values (11 to −35) indicates a complex mixture of sources from juvenile to extremely ancient. The Concordia ages at 1113 ± 11 and 1046 ± 10 Ma have positive hafnium isotope signatures (up to +10.45) that are consistent with juvenile source rocks formed during the Grenville Orogeny. Several detrital zircons with ages of 2622 ± 22 Ma and 2690 ± 7 Ma are similar to those reported in Yemen, whereas 1818 ± 19 Ma, 2071 ± 8 Ma and 2001 ± 19 Ma Paleoproterozoic ages are similar to dated outcrops in the Khida terrane in the eastern Arabian Shield.
来自米迪亚地层 Silasia Formation 锆石碎片的铀-铅年代和铪同位素数据记录了阿拉伯地盾北部的产地和构造演化证据。鉴于这些碎屑沉积物的公认最年轻年龄为 735 ± 13 Ma,Silasia 地层很可能是在莫桑比克洋关闭期间沉积的。U-Pb年龄确定了一个主要的中新生代峰值,以及两个新新生代和阿寒纪的小峰值。结合锆石Hf同位素组成,Silasia地层的沉积碎屑主要来源于罗迪尼亚组装期间格勒维尔造山运动形成的源岩,阿新世和古元古代地壳物质也有少量贡献,此外还有与早期莫桑比克洋有关的有限弧底供应。最年轻的康科迪亚年龄为 735 ± 13 Ma,εHf(t)值变化很大(11 到 -35),表明来源复杂,从幼年到极为古老。1113±11和1046±10Ma的Concordia年龄具有正铪同位素特征(高达+10.45),与Grenville造山运动期间形成的幼年源岩一致。年龄为 2622 ± 22 Ma 和 2690 ± 7 Ma 的几颗碎屑锆石与也门报告的年龄相似,而 1818 ± 19 Ma、2071 ± 8 Ma 和 2001 ± 19 Ma 的古新生代年龄则与阿拉伯地盾东部 Khida terrane 露头的年代相似。
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引用次数: 0
Ramp Depositional Model in an Intracratonic Basin: The Cambrian Sedimentary Successions in Yanshan Area, North China 地壳内盆地的斜坡沉积模型:华北燕山地区寒武纪沉积演替
IF 1.8 4区 地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY Pub Date : 2024-09-10 DOI: 10.1002/gj.5056
Shilong Kang, Longyi Shao, Santanu Banerjee, Shuai Wang, Tracy Frank
The mechanisms for the deposition of the Cambrian carbonate sedimentary successions remain controversial. The carbonate‐dominated successions (Stage 3 to Stage 10) are well developed in the North China Craton and they are commonly thought to represent a platform setting because of the flat top. In this study, we propose a new scenarioi, that the Cambrian successions in North China are more likely a carbonate ramp rather than a platform. Detailed sedimentological investigation for the Cambrian rocks in the Yanshan area (Stage 4 to Stage 10) reveals a total of 21 lithofacies which can be grouped into 7 facies associations, including sabkha and mixed tidal flat, shoal, carbonate tidal flat, tidal flat on shoal, protected lagoon, mid‐ramp and outer ramp to shelf basin. Sequence stratigraphy analysis of the Cambrian in the Yanshan area reveals nine third‐order depositional sequences, which shows an overall second‐order transgression. A number of sedimentary characteristics, including the gentle depositional slope, abundant open marine deposits, scattered shoals and microbial mounds, absence of slump or gravity flow sediment, domination of subtidal facies cycles and widespread deposits that formed below the storm wave‐base, indicate that the Cambrian sediments in the Yanshan area were deposited in an intracratonic carbonate ramp depositional system. This intracratonic carbonate ramp includes inner ramp, mid‐ramp, outer ramp and shelf basin facies belts, with the inner ramp exhibiting sub‐facies corresponding to tidal flat, protected lagoon and shoal sub‐facies. Sequence stratigraphy analysis indicates that relative sea‐level changes, corresponding to these nine third‐order sequences, show synchronous with the global sea‐level change across the studied sections. This consistency implies that eustatic sea‐level changes could have been a major factor for the sequence stacking patterns in the Yanshan Area.
寒武纪碳酸盐沉积演替的沉积机制仍存在争议。华北克拉通以碳酸盐岩为主的演替(第 3 期至第 10 期)十分发育,由于其顶部平坦,通常被认为是平台环境。在本研究中,我们提出了一种新的设想i ,即华北地区的寒武纪演替更可能是碳酸盐岩斜坡,而不是地台。通过对燕山地区寒武系岩石(第 4 期至第 10 期)的详细沉积学调查,共发现了 21 个岩相,可归纳为 7 个岩相组合,包括沙布卡和混合滩涂、滩涂、碳酸盐滩涂、滩涂上的滩涂、受保护的泻湖、中斜坡和外斜坡至陆架盆地。燕山地区寒武系的层序地层分析显示了九个三阶沉积层序,总体上呈现出二阶横断。平缓的沉积坡度、丰富的开阔海相沉积、零星的滩涂和微生物丘、无坍塌或重力流沉积、潮下带面循环为主、风暴潮基以下沉积广泛等沉积特征表明,燕山地区寒武纪沉积物沉积于地壳内碳酸盐岩斜坡沉积体系。该地壳内碳酸盐岩斜坡带包括内斜坡带、中斜坡带、外斜坡带和陆架盆地面带,其中内斜坡带表现出与潮平带、保护潟湖带和滩涂带子岩相相对应的子岩相。层序地层学分析表明,与这九个三阶层序相对应的相对海平面变化与所研究地段的全球海平面变化同步。这种一致性表明,震旦纪海平面变化可能是燕山地区序列堆积模式的主要因素。
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引用次数: 0
Tracing subducted oceanic slabs in the mantle by using molybdenum isotopes: A case study of intraplate basalts from Northeast China 利用钼同位素追踪地幔中的俯冲大洋板块:中国东北板内玄武岩案例研究
IF 1.8 4区 地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY Pub Date : 2024-09-06 DOI: 10.1002/gj.5030
Qifang Zheng, Xiuhe Gao, Zhenyu Fan, Guangyu He, Qian Wang, Jane Fitton, Daoqing Zhou
Determining subduction‐related processes is crucial for understanding lithological heterogeneity, as substantial quantities of slabs are recycled into the mantle. Molybdenum isotopes are valuable for distinguishing sources materials due to the significant isotope differences between the crust and the mantle. In this study, we systematically investigate Mo isotopes in a suite of well‐characterized continental basalts from Keluo and Halaha‐Chaoer, located in Northeast China. The δ98Mo values of Keluo range from −0.41 to −0.23‰, with an average of −0.34‰, while Halaha‐Chaoer samples ranged from −0.18 to −0.12‰, with an average of −0.15‰. The δ98Mo values of Keluo basalts are lighter than the mean value of fresh oceanic basalts (−0.21‰), whereas those of Halaha‐Chaoer basalts are similar to oceanic basalts. Combined with other geochemical indications (LOI, Ce/Pb, La/Yb and so on), the Mo isotopic variations cannot be attributed to chemical weathering, continental crust contamination or magmatic processes. Instead, the δ98Mo variations in this study are explained by the incorporation of different oceanic crustal materials into the magma sources. Correlations of δ98Mo with Ba/Th, Th/U, 143Nd/144Nd indicated that both sediment and altered oceanic crust have significantly influenced these variations. This study demonstrates the potential of Mo isotopes to distinguish different types of recycled oceanic crust materials.
由于大量板块被回收到地幔中,因此确定与俯冲有关的过程对于了解岩性异质性至关重要。由于地壳和地幔之间存在显著的同位素差异,钼同位素对于区分来源物质非常重要。在本研究中,我们系统地研究了位于中国东北地区的开鲁和哈拉哈河-绰尔的一系列特征良好的大陆玄武岩中的钼同位素。科洛样品的δ98Mo值在-0.41~-0.23‰之间,平均为-0.34‰;哈拉哈河-绰尔样品的δ98Mo值在-0.18~-0.12‰之间,平均为-0.15‰。凯洛玄武岩的δ98Mo值比新鲜大洋玄武岩的平均值(-0.21‰)轻,而哈拉哈-绰尔玄武岩的δ98Mo值与大洋玄武岩相近。结合其他地球化学指标(LOI、Ce/Pb、La/Yb 等),Mo 同位素变化不能归因于化学风化、大陆地壳污染或岩浆过程。相反,本研究中的δ98Mo变化可解释为岩浆源中掺入了不同的大洋地壳物质。δ98Mo与Ba/Th、Th/U、143Nd/144Nd的相关性表明,沉积物和蚀变洋壳都对这些变化产生了重要影响。这项研究表明,Mo 同位素具有区分不同类型再循环洋壳材料的潜力。
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引用次数: 0
Depositional Age and Provenance of the Erlangping Group in the Tianshui Area: Implication for Early Palaeozoic Evolution of the Erlangping Back‐Arc Basin 天水地区二郎坪组的沉积时代和产状:二郎坪背弧盆地早古生代演化的启示
IF 1.8 4区 地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY Pub Date : 2024-09-06 DOI: 10.1002/gj.5051
Yukun Qi, Jiaopeng Sun, Yunpeng Dong, Weidong He, Zonglin Li, Lei He, Kai Ye, Zhigang Wang, Junxiang Zhang, Teng Wang
The Erlangping back‐arc Basin separated the North Qinling Arc Terrane (NQAT) from the North China Block during Cambrian‐Ordovician. An enhanced knowledge on its evolutionary history would greatly improve our understanding on tectonic evolution of the Proto‐Tethys Ocean. In this study, we undertook sandstone petrologic and detrital zircon U–Pb geochronologic investigations on the Erlangping Group around the Tianshui Area. The Erlangping Group meta‐sedimentary rocks yielded two general types of zircon U–Pb age patterns. The first type is composed mostly of Neoproterozoic ages with a major age peak at ca. 900 Ma and has a youngest age population peaking at ca. 440 Ma. The second type is dominated by ca. 500–400 Ma components with a youngest age peak of ca. 380 Ma. The two contrasting age patterns and youngest peak ages, along with known ages of volcanic interbeds and intruded granites, allow us to subdivide the Erlangping Group to a Silurian unit and a Devonian unit, which are both stratigraphic higher than the Cambrian‐Ordovician ophiolitic unit of the Erlangping Group. In comparison with age spectra of coeval sediments in the nearby tectonic units, we found that sources of the Erlangping Group were from the Neoproterozoic NQAT basement rocks and associated Early Palaeozoic volcanic and plutonic rocks. The increasing numbers of younger zircons hint at a significant structural unroofing of the NQAT at the Silurian‐Devonian transition before having been subjected to greenschist‐facies metamorphism in the Devonian in response to the elimination of the Shangdan Ocean.
二郎坪弧后盆地在寒武-奥陶纪将北秦岭弧地带与华北地块分隔开来。加强对其演化历史的了解,将大大提高我们对原特提斯洋构造演化的认识。本研究对天水一带的二郎坪组进行了砂岩岩石学和碎屑锆石U-Pb地质年代研究。二郎坪组元古代沉积岩的锆石 U-Pb 年龄模式一般有两种。第一种类型主要由新元古代年龄组成,主要年龄峰值约为 900 Ma,年龄群最年轻。第一种类型主要由新近纪年龄组成,主要年龄峰值约为 900 Ma,最年轻的年龄峰值约为 440 Ma。440 Ma。第二种类型主要由约 500-400 Ma 的成分组成,最年轻的年龄峰值约为 380 Ma。这两种截然不同的年龄模式和最年轻的年龄峰值,以及已知的火山岩夹层和侵入花岗岩的年龄,使我们可以将二郎坪组细分为志留纪单元和泥盆纪单元,这两个单元的地层均高于二郎坪组的寒武-奥陶纪蛇绿岩单元。通过与附近构造单元共生沉积物的年龄谱对比,我们发现二郎坪组的沉积物来源于新元古代NQAT基底岩和相关的早古生代火山岩和块岩。越来越多的年轻锆石表明,在志留纪与泥盆纪的过渡时期,NQAT在结构上发生了显著的解顶,然后在泥盆纪由于上丹洋的消失而发生了绿屑变质作用。
{"title":"Depositional Age and Provenance of the Erlangping Group in the Tianshui Area: Implication for Early Palaeozoic Evolution of the Erlangping Back‐Arc Basin","authors":"Yukun Qi, Jiaopeng Sun, Yunpeng Dong, Weidong He, Zonglin Li, Lei He, Kai Ye, Zhigang Wang, Junxiang Zhang, Teng Wang","doi":"10.1002/gj.5051","DOIUrl":"https://doi.org/10.1002/gj.5051","url":null,"abstract":"The Erlangping back‐arc Basin separated the North Qinling Arc Terrane (NQAT) from the North China Block during Cambrian‐Ordovician. An enhanced knowledge on its evolutionary history would greatly improve our understanding on tectonic evolution of the Proto‐Tethys Ocean. In this study, we undertook sandstone petrologic and detrital zircon U–Pb geochronologic investigations on the Erlangping Group around the Tianshui Area. The Erlangping Group meta‐sedimentary rocks yielded two general types of zircon U–Pb age patterns. The first type is composed mostly of Neoproterozoic ages with a major age peak at ca. 900 Ma and has a youngest age population peaking at ca. 440 Ma. The second type is dominated by ca. 500–400 Ma components with a youngest age peak of ca. 380 Ma. The two contrasting age patterns and youngest peak ages, along with known ages of volcanic interbeds and intruded granites, allow us to subdivide the Erlangping Group to a Silurian unit and a Devonian unit, which are both stratigraphic higher than the Cambrian‐Ordovician ophiolitic unit of the Erlangping Group. In comparison with age spectra of coeval sediments in the nearby tectonic units, we found that sources of the Erlangping Group were from the Neoproterozoic NQAT basement rocks and associated Early Palaeozoic volcanic and plutonic rocks. The increasing numbers of younger zircons hint at a significant structural unroofing of the NQAT at the Silurian‐Devonian transition before having been subjected to greenschist‐facies metamorphism in the Devonian in response to the elimination of the Shangdan Ocean.","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142215346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Insights of resources productivity and green technologies impact on renewable energy consumption: Novel MMQR approach 洞察资源生产率和绿色技术对可再生能源消耗的影响:新颖的 MMQR 方法
IF 1.8 4区 地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY Pub Date : 2024-09-05 DOI: 10.1002/gj.5044
Magdalena Radulescu, Abdulkadir Barut, Kamel Si Mohammed, Abdelmohsen A. Nassani, Ibrahim Cutcu
This study investigates the dynamic effect of resource productivity and green technologies on renewable energy (RE) use in 28 middle‐income countries from 2006 to 2022 using MMQR, QR and causality techniques. Results suggested that green technology innovation substantially influences RE use. Second, the significant positive coefficients show that resource productivity leads to higher RE consumption at the upper quantile due to decoupling Gross Domestic Product (GDP) growth from extracting natural resources, indicating a transition towards more sustainable and efficient practices. Based on the empirical findings, several policy implications are suggested for middle‐income economies.
本研究采用多变量量化回归(MMQR)、快速回归(QR)和因果关系技术,研究了 2006 年至 2022 年期间 28 个中等收入国家的资源生产率和绿色技术对可再生能源使用的动态影响。结果表明,绿色技术创新极大地影响了可再生能源的使用。其次,显着的正系数表明,由于国内生产总值(GDP)增长与自然资源开采脱钩,资源生产率会导致较高数量级的可再生能源消费量增加,这表明正在向更可持续、更高效的做法过渡。根据实证研究结果,提出了对中等收入经济体的若干政策影响。
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引用次数: 0
Pore structure and adsorption capability of marcolithotypes in the Weizhou mining area, western margin of Ordos Basin 鄂尔多斯盆地西缘魏州矿区岩溶类型的孔隙结构与吸附能力
IF 1.8 4区 地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY Pub Date : 2024-09-03 DOI: 10.1002/gj.5031
Wei He, Kai Hu, Jian Cao, Suping Yao, Chao Zhang, Bei Wang, Guobin Niu
Differences in the pore and fracture systems of four marcolithotypes (bright,semi‐bright, semi‐dull and dull) in coal reservoirs affect the quality of coalbed methane (CBM) and constrain exploration and development of CBM. In this paper, vitrinite reflectance (RO), maceral composition, proximate analysis, scanning electron microscopy (SEM), mercury intrusion porosimetry (MIP), low‐field nuclear magnetic resonance (NMR) and high‐pressure isothermal adsorption experiments and the mathematical method of fractal dimension were carried out on high‐rank coal samples of different marcolithotypes from the Weizhou mining area in the western margin of Ordos Basin. The results show that from bright coal to dull coal, the RO and vitrinite content gradually decrease, while the mineral content and Aad gradually increase. SEM images show that the bright and semi‐bright coals develop open fractures, whereas semi‐dull and dull coals develop closed fractures. According to pore size distribution established by MIP and NMR, the proportion of seepage pores gradually increased from bright coal to dull coal, and MIP fractal dimension of seepage pores (DM2; 2.3352, 2.3532, 2.3755 and 2.4727, respectively) and NMR fractal dimension of seepage pores (DN2; 2.8767, 2.9142, 2.9297 and 2.9981, respectively) show that the structure of the seepage pore is progressively more complex from bright coal to dull coal. In addition, percentage of NMR adsorption pores progressively increases from bright coal to dull coal (64.96%, 76.64%, 82.04% and 89.67%, respectively), but total porosity of bright coal (6.74%) is much greater than that of dull coal (1.34%), which results in that bright coal also has the strongest CH4 adsorption capability (Langmuir volume is 22.898 cm3/g).
煤储层中四种泥灰岩类型(明亮型、半明亮型、半暗淡型和暗淡型)的孔隙和裂缝系统的差异会影响煤层气的质量,并制约煤层气的勘探和开发。本文对鄂尔多斯盆地西缘魏州矿区不同岩浆岩型的高阶煤样进行了玻璃光泽度(RO)、宏观组成、近物分析、扫描电镜(SEM)、汞侵入孔隙度(MIP)、低场核磁共振(NMR)、高压等温吸附实验和分形维数学方法研究。结果表明,从亮煤到暗煤,RO 和玻璃石含量逐渐降低,而矿物含量和 Aad 则逐渐增加。扫描电子显微镜图像显示,明煤和半明煤出现开放性裂缝,而半暗煤和暗煤出现闭合性裂缝。根据 MIP 和 NMR 确定的孔径分布,渗孔比例从亮煤到暗煤逐渐增加,渗孔的 MIP 分形维数(DM2;分别为 2.3352、2.3532、2.3755 和 2.4727)和渗孔 NMR 分形维数(DN2;分别为 2.8767、2.9142、2.9297 和 2.9981)表明,从亮煤到暗煤,渗孔结构逐渐复杂。此外,从明煤到暗煤,核磁共振吸附孔的百分比逐渐增加(分别为 64.96%、76.64%、82.04% 和 89.67%),但明煤的总孔隙率(6.74%)远大于暗煤(1.34%),这导致明煤也具有最强的 CH4 吸附能力(朗缪尔体积为 22.898 cm3/g)。
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引用次数: 0
Role of energy natural resource productivity and environmental taxation in controlling environmental pollution: Policy‐based analysis for regions 能源自然资源生产率和环境税在控制环境污染中的作用:地区政策分析
IF 1.8 4区 地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY Pub Date : 2024-08-27 DOI: 10.1002/gj.5047
Xin Zhao, Guoqing Zhai, Xiaowei Ma, Kamel Si Mohammed, Yuriy Bilan, Abdelmohsen A. Nassani
The present study explores the impact of energy natural resource productivity and environmental tax on environmental sustainability in six major CO2‐emitting economies: the Euro Area, China, South Korea, Japan, the United Kingdom and the United States, from 1997 to 2019. This analysis aims to reveal novel findings and implications for different energy natural resource productivity types and environmental regulations. We employed data regarding leading national and regional CO2 emitters from 1997 to 2020 to conduct an empirical analysis using the panel non‐linear auto‐regressive distributed lag (NARDL) and panel quantile ARDL (QARDL) methods. The results show that energy natural resource productivity and environmental tax are crucial components in reducing CO2 emissions by controlling for innovation technology and renewable energy consumption. The main findings demonstrate that the impact is stronger in the presence of increased energy natural resource productivity and vice versa. These findings have novel implications for sustainable development and carbon neutrality.
本研究探讨了 1997 年至 2019 年六个主要二氧化碳排放经济体(欧元区、中国、韩国、日本、英国和美国)的能源自然资源生产率和环境税对环境可持续性的影响。这项分析旨在揭示不同能源自然资源生产力类型和环境法规的新发现和影响。我们采用 1997 年至 2020 年主要国家和地区二氧化碳排放数据,使用面板非线性自回归分布滞后(NARDL)和面板量化自回归分布滞后(QARDL)方法进行了实证分析。结果表明,在控制创新技术和可再生能源消费的情况下,能源自然资源生产率和环境税是减少二氧化碳排放的关键因素。主要研究结果表明,在能源自然资源生产率提高的情况下,环境税的影响更大,反之亦然。这些发现对可持续发展和碳中和具有新的意义。
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引用次数: 0
Magnetostratigraphy and rock magnetic studies on the Cretaceous‐Paleogene transition strata along the Um Sohryngkew River, Therriaghat, Meghalaya, India 印度梅加拉亚 Therriaghat 地区 Um Sohryngkew 河沿岸白垩纪-古近纪过渡地层的磁地层学和岩石磁性研究
IF 1.8 4区 地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY Pub Date : 2024-08-27 DOI: 10.1002/gj.5046
Debarati Nag, Satish J. Sangode, Sarvendra P. Singh, Prem R. Uddandam, Adrita Choudhuri, Binita Phartiyal, Vandana Prasad
A combination of magnetic polarity and rock magnetic analysis on the well‐documented section of the Um Sohryngkew River (USR) in the south Shillong Plateau, NE India, produced a sharp reversal marking the C29r‐C29n geomagnetic polarity transition at approximately 65.688 Ma. The rock magnetic studies indicate ferrimagnetic dominant mineralogy with abundance of SSD grains, with an anomalous peak in susceptibility coinciding with Ir‐rich limonitic layer. The magnetic reversal occurs precisely 61 m above the Ir‐rich distinct in situ limonitic layer, indicating that the C29r‐C29n geomagnetic reversal post‐dates the widely accepted Ir‐anomaly based K‐Pg boundary by approximately 355 Ka. Furthermore, the rock magnetic studies indicate its frequency dependence coinciding with the Ir‐rich limonitic layer suggesting a possible dust/aerosol source, while akaganéite is reported from the interval approximately 1 m below peak susceptibility, indicating signature of Deccan volcanism. This study infers the completeness of the USR section with a high rate of sedimentation of approximately 17 cm/ka among the marine K‐Pg boundary sections in the world.
在印度东北部锡隆高原南部的乌姆苏林圭河(USR)有据可查的地段上,结合磁极性和岩石磁性分析,发现了一个急剧的反转,标志着大约在 65.688 Ma 处的 C29r-C29n 地磁极性转换。岩石磁性研究表明,铁磁性矿物学占主导地位,富含 SSD 晶粒,与富含 Ir 的褐铁矿层相吻合的电感异常峰值。磁性反转恰好发生在富含Ir的独特原位褐铁矿层上方61米处,这表明C29r-C29n地磁反转比广泛接受的基于Ir异常的K-Pg边界晚了约355Ka。此外,岩石磁性研究表明,其频率依赖性与富含Ir的褐铁矿层相吻合,这表明可能存在尘埃/气溶胶来源,而据报告,在低于峰值磁感应强度约1米的区间存在阿卡冈奈石,这表明德干火山活动的特征。这项研究推断了 USR 断面的完整性,其沉积速率在全球海洋 K-Pg 边界断面中约为 17 厘米/千卡。
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引用次数: 0
Mantle dynamics of the stagnating slab: A case study of Shandong Peninsula and adjacent areas 停滞板块的地幔动力学:山东半岛及邻近地区案例研究
IF 1.8 4区 地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY Pub Date : 2024-08-27 DOI: 10.1002/gj.5045
Kailun Ba, Haimeng Xue, Lin Liu, Jianping Huang, Junhao Qu
The Shandong Peninsula is located in the eastern part of the North China Craton (NCC). Influenced by the collision between the North and South China blocks and the subduction of the Pacific Plate, the tectonic evolution process is highly complex. Previous studies have proposed that the thick cratonic root beneath the eastern NCC has been destructed. To better understand the relationship between the craton reactivation and the deep subduction, more constraints on the topography variations of the mantle transition zone (MTZ) discontinuities are required. In this study, we stacked 9073 P‐to‐S receiver functions calculated from 129 broadband seismic stations to image the depth variations of the MTZ discontinuities beneath the Shandong Peninsula and its adjacent area. To decrease the influence of velocity anomaly above the MTZ discontinuities, we converted the apparent depths into corrected depth using regional and global 3D velocity models. The apparent depth of the 410‐km discontinuity exhibits a depression of approximately 6 km, which normalizes after velocity correction. This implies the existence of the low‐velocity anomaly in the upper mantle, possibly caused by slab dehydration and water infiltration into the upper mantle. The significant depression of the 660‐km discontinuity indicated the presence of the cold Pacific slab stagnating at the base of the MTZ. The gradual westward depression of the 660‐km discontinuity by 50 km could provide evidence for the sinking of the western margin of the flat‐lying subducting Pacific slab in the MTZ beneath the Shandong Peninsula.
山东半岛位于华北克拉通(NCC)东部。受华北板块和华南板块碰撞以及太平洋板块俯冲的影响,其构造演化过程十分复杂。以往的研究认为,华北克拉通东部地下厚厚的板块根系已被破坏。为了更好地理解克拉通再激活与深俯冲之间的关系,需要更多地对地幔过渡带(MTZ)不连续面的地形变化进行约束。本研究将129个宽带地震台站计算的9073个P-to-S接收函数叠加,对山东半岛及其邻近地区地幔过渡带不连续面的深度变化进行了成像。为了减小MTZ不连续面上方速度异常的影响,我们利用区域和全球三维速度模型将视深度转换为校正深度。410千米不连续面的视深度出现了约6千米的凹陷,经过速度校正后,凹陷趋于正常。这意味着上地幔存在低速度异常,可能是板块脱水和水渗入上地幔造成的。660千米不连续面的明显凹陷表明在MTZ底部存在停滞的冷太平洋板块。660千米不连续面逐渐向西凹陷50千米,可为山东半岛下的MTZ中平卧俯冲太平洋板块西缘下沉提供证据。
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Geological Journal
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