https://bereket-haileab.geology.sites.carleton.edu/files/original/fa919270c1c28c54c8ee4a05ec5fe2b8.jpg 13cad0284c75c5cb6700991bedd72619 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Sedimentary Rocks Subject The topic of the resource This collection includes sandstones, limestones, breccias, conglomerates, dolostones, shales, oolites, and BIF. Creator An entity primarily responsible for making the resource Bereket Haileab Source A related resource from which the described resource is derived Housed in Anderson Hall, Carleton College. Format The file format, physical medium, or dimensions of the resource Thin sections, thin section scans, hand samples, hand sample images, photomicrographs. Thin section and hand sample Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource BH250-128c Subject The topic of the resource Dolostone Description An account of the resource Major Mineral: dolomite Minor Minerals: pyrite, orthoclase Mineralogy Comments: majority of intergranular components are K-feldspar BH250-128c is a dolostone sample from the base of the Platteville Limestone, specifically mapped as the Hidden Falls Member. This unit is characterized by a blocky to massive texture and a distinct conchoidal fracture, which aids in its field identification. Its rich clay mineral composition contributes to a recessive weathering profile, as seen in the outcrops around Sogn and many bluffs and roadcuts near the Twin Cities. Lucille Baker-Stahl, Class of 2022, conducted her senior comprehensive research on this outcrop. Her study includes a wide range of photomicrographs, scanning electron microscopy (SEM) imagery, and geochemical analyses, which collectively provide insight into the mineralogy and diagenetic evolution of the Hidden Falls Member. Many of the photomicrographs reveal clear evidence of dolomitization, with textures showing relict calcite cores surrounded by dolomite rims indicating partial replacement during diagenesis and pointing to complex fluid-rock interactions during burial (EDS maps). Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Location: Warsaw Township, Minnesota, USA Nearby Geographic Feature: Sogn Valley GPS Coordinates: 44°24'16.8"N, 92°55'38.3"W Source A related resource from which the described resource is derived From the rock collection of Bereket Haileab. Sample BH250-128c. Housed at Carleton College in Minnesota. Contributor An entity responsible for making contributions to the resource Lucille Baker-Stahl Type The nature or genre of the resource Thin section and hand sample Relation A related resource <iframe width="100%" height="600" style="border: 0;" src="https://carleton.maps.arcgis.com/apps/instant/media/index.html?appid=0884842863544762bafb2b670a70b53e" frameborder="0" allowfullscreen="allowfullscreen">iFrames are not supported on this page.</iframe><br />View on ArcGIS Online <a href="https://carleton.maps.arcgis.com/home/item.html?id=0884842863544762bafb2b670a70b53e">here</a><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1-sk68uPB892cbnjz25Muyma_mFeTdZaV/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1gDiAD6OpOJ1UxVpdl84bz_HBp-VwrBr1/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1NT6e1eOswhn4afFwBUWdP6cHbJAMiJ97/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1be2-63TJm9OJwslbhYaxfcsdr4Qnjaw0/preview" allow="autoplay"></iframe> <iframe width="100%" height="480" src="https://drive.google.com/file/d/1qCCARQ-XRf1T8Ti0F_vBLxiAG9VLyuHj/preview" allow="autoplay"></iframe> <iframe width="100%" height="480" src="https://drive.google.com/file/d/1GQ4dXn91MP3TZDLRIUC03Zf8subqcErr/preview" allow="autoplay"></iframe> <iframe width="100%" height="480" src="https://drive.google.com/file/d/1Q3KdpA82OV945jMVyathggBf6QFhbX-U/preview" allow="autoplay"></iframe> <br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1iaOhKym19E3INvVRwOrZcZn2b9_uqj7y/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1czoXqGCAJ0095BxXOEPCSEfGvoL5QHla/preview" allow="autoplay"></iframe> Creator An entity primarily responsible for making the resource Bereket Haileab carbonate Dolostone Hidden Falls Member Platteville Limestone Dolomite Dolomitization EDS Mapping Conchoidal fracture Warsaw Township Minnesota Sogn Valley Lucille Baker-Stahl sedimentary