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Geochemical analyses of rock samples collected from the Judith Mountains and Crazy Mountains alkalic complexes, Montana Geochemical data include major, minor and trace element results for 42 alkaline silicate igneous rock samples. Samples were collected from natural exposures/outcrops during field work in the Central Montana Alkaline Province (CMAP) during the summer of 2022. All samples were analyzed by the U.S. Geological Survey contract laboratory, SGS Labs. Major, minor, and trace elements were determined via wavelength dispersive X-ray fluorescence (WDXRF), inductively coupled plasma-optical emission spectrometry (ICP-OES) and inductively coupled plasma-mass spectrometry (ICP-MS). Additional analytes determined were carbonate carbon by combustion and infrared detection (IR); gold, platinum, and palladium by lead fusion fire... Categories: Data; Tags: CMAP, Central Montana Alkalic Province, Crazy Mountains, Crazy Peak, GGGSC, All tags... Geochemistry, Geology, Geophysics, and Geochemistry Science Center, Judith Mountains, Judith Peak, MRP, Mineral Resources, Mineral Resources Program, Montana, USGS, USGS Science Data Catalog (SDC), United States, United States Geological Survey, alkaline complexes, chemical analysis, critical elements, critical minerals, exploration geochemistry, geochemical data, geochemistry, geoscientificInformation, igneous rocks, mineral resources, natural resource exploration, petrology, rock chemistry, whole-rock, Fewer tags Alkalic Igneous Centers of the Great Plains and Rocky Mountains: Data in Support of Critical Mineral Resource Studies This community is designed to link data acquired for alkalic igneous centers of the western United States in support of critical mineral resource investigations. Areas of interest include, but are not limited to, the Central Montana Alkalic Province, Northern Black Hills (South Dakota-Wyoming), Front Range of Colorado, and Great Plains margin in New Mexico and Texas. Datasets may include, but are not limited to, geochemical, geochronological, and isotopic data. Scientists interested in contributing to this community are asked to contact the manager(s). Tags: Black Hills, Central Montana Alkalic Province, Front Range, Paleogene, Tertiary, All tags... alkalic complex, alkaline complex, carbonatite, critical minerals, fluorspar, niobium, peralkaline syenite, rare earth elements, tellurium, Fewer tags Lithogeochemistry and images of selected drill core samples from the Mineral Hill alkaline complex, Wyoming This data release contains analytical data and images for a suite of drill core samples from the Mineral Hill alkaline complex (MHAC), northeastern Wyoming. Geochemistry data include major and trace element analytical results for 103 alkaline igneous rock samples. Images include hand sample photographs of halved core and full thin section images captured in transmitted, plane-polarized and cross-polarized light. Samples are from two core holes drilled by Humble Oil Company in 1970, and subsequently acquired and stored by Felix Mutschler at Eastern Washington University. The two skeletonized (incomplete) drill cores were acquired by the U.S. Geological Survey Geology, Minerals, Energy, and Geophysics Spokane office... Categories: Data; Tags: Alkaline silicate rocks, Au, Crook County, Economic Geology, Fire assay, All tags... GGGSC, GMEG, Geochemistry, Geology, Geophysics, and Geochemistry Science Center, Geology, Minerals, Energy, and Geophysics Science Center, Gold, ICP-MS, ICP-OES, INAA, Inductively coupled plasma-mass spectrometry, Inductively coupled plasma-optical emission spectrometry, Instrumental neutron activation analysis, MRP, Major elements, Mineral Hill, Mineral Resource Program, Mineral Resources, PGEs, Platinum Group Elements, Trace elements, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), United States, WDXRF, Wavelength dispersive X-ray fluorescence, Whole-rock, Wyoming, core analysis, geochemistry, geoscientificInformation, image collections, mass spectroscopy, neutron activation analysis, photography, x-ray fluorescence, Fewer tags