Profile location data for a 2-D Electrical Resistivity Tomography (ERT) survey, Karonga, Northern Malawi Rift (2015, investigators Estella Atekwana, Daniel Lao-Davila, Folarin Kolawole)

This data set contains shapefiles showing the location of the 2-D electrical resistivity tomography profiles acquired in July 2015 in the Karonga area of northern Malawi Rift. The ERT profile data was collected using a dipole–dipole array with an Iris Syscal Pro 10-channel resistivity meter. There were 72 electrodes with 10 m electrode spacing. Profile 1 is a NNW-SSE profile along the trend of the surface ruptures. Profiles 2 and 3 are roughly E-W profiles oriented perpendicular to and across the trend of the surface ruptures. Profile 1 is 1070 m long, and Profiles 2 and 3 are 710 m long. The data files are in shapefile format. They were generated as part of the projects called Integrated studies of early stages of continental extension: From incipient (Okavango) to young (Malawi) rifts, and IRES: Research Opportunities in Continental Rift Initiation for U.S. Undergraduate Geoscience Students in Malawi. Funding was provided by NSF awards EAR 1009988 and OISE 1358150. The 2015 Malawi data acquisition team included five 2015 International Research Experience for Students (IRES) participants: B. Clappe, C. Hull, T. Johnson, V. Nyalugwe, and S. Dawson.

本数据集包含了2015年7月在马拉维北部裂谷地区Karonga区域获取的二维电性层析成像（ERT）剖面形状文件。该电性层析成像剖面数据系采用双极-双极阵列，并使用Iris Syscal Pro 10通道电阻率计进行采集。数据集中包含72个电极，电极间距为10米。剖面1是一条沿地表破裂趋势走向的近西北-东南向剖面。剖面2和3是垂直于地表破裂趋势并跨越其走向的大致东西向剖面。剖面1长度为1070米，剖面2和3长度均为710米。数据文件以形状文件格式存储。这些文件是作为名为“对大陆扩张早期阶段综合研究：从萌芽（奥卡万戈）到年轻（马拉维）裂谷”以及“IRES：针对马拉维美国本科生地质科学研究的裂谷起源研究机遇”的项目的一部分生成的。项目资金由NSF奖项EAR 1009988和OISE 1358150提供。2015年马拉维数据采集团队包括五位2015年国际研究体验学生（IRES）参与者：B. Clappe、C. Hull、T. Johnson、V. Nyalugwe和S. Dawson。