2025年夏季,美国地质勘探局在密歇根和威斯康辛进行了低海拔调查,绘制重要矿物和资源的地下地质图。 In summer 2025, the USGS flew low-altitude surveys in Michigan and Wisconsin to map underground geology for critical minerals and resources.

2025年夏天,美国地质调查局利用配备有被动磁、辐射测量和电磁传感器的低飞行飞机,对密歇根州上半岛和威斯康星北部进行了一次大规模空中勘测。 In summer 2025, the U.S. Geological Survey conducted a large-scale aerial survey over Michigan’s Upper Peninsula and northern Wisconsin using low-flying aircraft equipped with passive magnetic, radiometric, and electromagnetic sensors. 作为地球绘图资源倡议的一部分,该飞行任务收集了高分辨率数据,以绘制地表下地质分布图,在包括密歇根州的Alger、Marquette和Schocraft以及威斯康辛州的Vilas、铁和佛罗伦萨在内的各县的深度约为1万英尺。 The mission, part of the Earth Mapping Resources Initiative, collected high-resolution data to map subsurface geology to depths of about 10,000 feet across counties including Alger, Marquette, and Schoolcraft in Michigan, and Vilas, Iron, and Florence in Wisconsin. 航班在大约330英尺处飞行,航线相距500至1 300英尺,收集数据,取代过时的信息,支持改进对重要矿物、水资源和土地使用的评估。 Flights flew at roughly 330 feet with lines spaced 500 to 1,300 feet apart, gathering data that will replace outdated information and support improved assessments of critical minerals, water resources, and land use. 这些数据由联邦承包商管理,由西密歇根大学和州地质调查局的科学家分析,将在科学数据库上公开提供,用于危害评价、基础设施规划和环境管理。 The data, managed by federal contractors and analyzed by scientists from Western Michigan University and state geological surveys, will be publicly available on ScienceBase and used for hazard evaluation, infrastructure planning, and environmental management.