青藏高原（班公怒江缝合带中段）蛇绿岩中基性岩矿物-全岩地球化学和同位素数据集

此数据集包括青藏高原班公湖–怒江缝合带中段蛇绿岩中基性岩的全岩主微量元素和Sr-Nd同位素、锆石U-Pb年龄和微量元素、单矿物电子探针以及斜长石Ar-Ar年龄数据。采样时间为2014年-2016年，地点为蓬错南岸和纳木错西岸。岩石样品包括蓬错南岸的高镁安山岩7件、玻安质岩脉3件、辉长岩4件以及纳木错西岸的玄武岩14件。该数据对研究藏中洋底高原及新生洋内弧残片的物质组成、年代学和地球化学提供了支撑，对认识班公中特提斯洋底高原和新生洋内弧的形成和演化具有重要意义。全岩主、微量元素分别使用荧光光谱仪（XRF）和等离子质谱仪（ICP-MS）测试，锆石U-Pb定年及微量元素测试使用的是激光剥蚀等离子质谱仪（LA-ICP-MS），单矿物主量元素使用电子探针分析（EPMA）全岩Sr-Nd同位素测试则是通过离子交换树脂分离以及ICP-MS测试，斜长石Ar-Ar年龄是在核反应堆对样品照射后通过激光加热和同位素分析所得，数据结果真实可靠。测试单位包括南京大学内生金属矿床成矿机制研究国家重点实验室，南京大学现代分析测试中心，西北大学大陆动力学国家重点实验室，中国科学院地质与地球物理研究所氩氩、铀-钍-氦年代学实验室，合肥工业大学资源与环境工程学院电子探针实验室。该数据集所在文章已发表在知名刊物《Gondwana Research》上，据谷歌学术统计目前被引已达18次。

This dataset comprises whole-rock major and trace elements, Sr-Nd isotopes, zircon U-Pb ages and trace elements, electron probe microanalysis (EPMA) data of single minerals, and plagioclase Ar-Ar age data from mafic rocks in the ophiolite of the central segment of the Bangong Co-Nujiang suture zone, Tibetan Plateau. Sampling was conducted between 2014 and 2016 at the southern bank of Peng Co and the western bank of Nam Co. The rock samples include 7 high-magnesium andesites, 3 boninitic dikes, and 4 gabbros from the southern bank of Peng Co, as well as 14 basalts from the western bank of Nam Co. This dataset provides support for studies on the petrological composition, geochronology, and geochemistry of the oceanic plateau and nascent intra-oceanic arc relics in central Tibet, and is of great significance for understanding the formation and evolution of the Bangong Meso-Tethys oceanic plateau and nascent intra-oceanic arc. Whole-rock major elements were analyzed using X-ray fluorescence spectrometry (XRF), while trace elements were measured via inductively coupled plasma mass spectrometry (ICP-MS). Zircon U-Pb dating and trace element analysis were performed using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Major elements of single minerals were determined by electron probe microanalysis (EPMA). Whole-rock Sr-Nd isotopes were analyzed after separation by ion exchange resins followed by ICP-MS. Plagioclase Ar-Ar ages were obtained through laser heating and isotopic analysis after sample irradiation in a nuclear reactor. All data are authentic and reliable. The analyses were conducted at the following institutions: State Key Laboratory of Metallogenic Mechanism of Endogenous Metal Deposits, Nanjing University; Modern Analysis and Testing Center of Nanjing University; State Key Laboratory of Continental Dynamics, Northwest University; Ar-Ar, U-Th-He Geochronology Laboratory, Institute of Geology and Geophysics, Chinese Academy of Sciences; and Electron Probe Microanalysis Laboratory, School of Resources and Environmental Engineering, Hefei University of Technology. The article associated with this dataset has been published in the prestigious journal *Gondwana Research*, and has been cited 18 times according to Google Scholar statistics.

搜集汇总

背景与挑战

背景概述

该数据集包含青藏高原班公湖–怒江缝合带中段蛇绿岩中基性岩的全岩地球化学、同位素及年代学数据，采样于2014-2016年，涵盖高镁安山岩、玻安质岩脉、辉长岩和玄武岩等多种岩石类型。数据为研究藏中洋底高原及新生洋内弧残片的形成和演化提供了关键支撑，已发表在《Gondwana Research》期刊上，具有较高的学术价值。