https://bereket-haileab.geology.sites.carleton.edu/files/original/92746e2a7662c6734b6b092bc80eabaa.jpg f76450328a562abcf27dee9c01c74ed4 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 Igneous Rocks Subject The topic of the resource This collection covers both volcanic and intrusive rocks, including rhyolites, granites, diorites, andesites, basalts, gabbros, diabases, pumices, obsidians, syenites, phonolites, peridotites, carbonatites, dacites, trachyte, dunites, xenoliths, ignimbrites, and pegmatites. 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, chemical analyses (major elements, trace elements and REE analyses for selected samples). 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 BH250-132 Subject The topic of the resource Rockville Granite Description An account of the resource <p data-start="65" data-end="253">Major Minerals: quartz, microcline, orthoclase, muscovite, biotite, plagioclase, perthite<br data-start="176" data-end="179" />Minor Minerals: zircon, apatite, allanite, monazite, sphene (titanite)</p> <p data-start="255" data-end="731">This rock contains excellent examples of the above minerals, making it highly useful for teaching purposes. In the past, I have used the thin sections as a “trophy hunt” exercise for students, challenging them to identify as many minerals as possible, observe a wide range of optical properties, and recognize alteration processes and their by-products. The exercise also helps students distinguish minerals that appear similar in thin section, such as biotite and hornblende.</p> <p data-start="733" data-end="915">The accessory minerals apatite, zircon, monazite, and allanite, which contain radioactive elements, beautifully demonstrate radiation damage effects on host minerals such as biotite.</p> <p data-start="917" data-end="1105">BH250-132 is a granite sample from the Rockville area, generally associated with the Penokean orogeny-related granitoids or intrusive events from the Late Archean to Early Proterozoic.</p> <p data-start="1107" data-end="1383">Rockville granite has been widely used in local historic buildings and bridges across Minnesota due to its availability and durability. Notable examples include old post office buildings, park benches, and the wall by the entrance of Anderson Hall at Carleton College.</p> <br /><br /><br /><iframe width="1800" height="100" src="https://docs.google.com/spreadsheets/d/e/2PACX-1vS4nyqCmZQGn3t6vX4g4nhDPwHMBaKrigt1LaY2pykWbBGXB1wNb6FYArx625I-JTtD7lyg4uz1OS1r/pubhtml?gid=1975846466&amp;single=true&amp;widget=true&amp;headers=false"></iframe> 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: Rockville, Minnesota, USA GPS Coordinates: 45°28'5.45"N, 94°20'4.57"W Source A related resource from which the described resource is derived From the rock collection of Bereket Haileab. Sample BH250-132. Housed at Carleton College in Minnesota. 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=4c1f4979f9244a6eace920ab50a42c64" 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=4c1f4979f9244a6eace920ab50a42c64">here</a><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1whJyf3UFVNh6POEwiB3Jhdv3B4YzAZ9t/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/19ueAcyoeqZHQPVfZ0EgN7N9N9J0n4UG0/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/17y35bdaxuNzKWB7ztkNGHlMYtsE6P5up/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/16IBfdhx2Ko9kH-r4D_QqyfYvRwc7Fvpz/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1ez99rN3tE1kTQgEbyDkYoI8Lq9XKcYcw/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/14g7M7Xz8hMuidwdRsQM3LdOyaZ4C8Is_/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1m5yBjy23kQnVcv6FMeq0cEMqgYzDkQZ4/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1cZxpNDCi6j3FH9G9iI_kzr2_D9K9QDxp/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1Ie7BesIQBNTv3P8uK3D12cVxGlx1XCNH/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1a_WnDWjeLu2InCzrTCVrU_IkF2a6xYPM/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1tlBMU8iz_AQjnwec4NIbDxXB_kKshbgA/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1zkXi7o_5_jYYDtEfTce8X20omMKgxtHB/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1mtqBiRgeOc6PMn_YT8decjlOHv-l_tH3/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1_tTq1G3gtQ3LFUFq9aGGTc0NN7P0nwl0/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1TZ6vlRvM6NN5lC0wDOkdH3Wh7lOnGCg9/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1vrDypnh-psN0twqh3BMCP9RqcxN1_n0X/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1foMsw7DCpF3Cdp7N1FjGjALDJk7CsO1X/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1vx8EtE0NIbOTdKoEm67GXRt0xxy5gxbo/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/13sYUxBnzLwlfDJc8lvnuIHmmio5ujgcZ/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1ynQ1GuXt-c7puqvlv278yS76XHeH_3fA/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1nxR_VbYwxboD7X3gC9M5LJ_idkjtUfCE/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/15GvtZhWdZaq-Z-vG-727dhHjV-WeJtTz/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1KiBqxhVG4HwLE_a3tFbXD8qRkawXYnOq/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1uBNnpKhNxcb4ifAybWAxKfPQ44k7o3ne/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1qg6w2EWkgMqsvbZCNJUb58LIFJ6kfF3w/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1Uh85G-Yr93MX5uRCMunnXtdF3XIGpTKa/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1038zhl4qIY9R80tDwrV-5OEw1KKioqUm/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1FJdVdcOHpt5yvI3py6f9XX6XQXCCZ56W/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1A-qE7FaznjaLNWEqx4ySe5YD5ss56gzM/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1SMPP-MW87C5Kj_79lup91YJ_IZzOQDM3/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1abmTZp58ngWACUkQH1cojmo5uRuw_G4Y/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/17WMjn4FMhjAT-Nxt9tkpxkLj8Q3weA4c/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1PfSfv7JbXLttTGp6667LIxILB7c3ZmFa/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1lkTLO71Jwp3HFkP9q_XKaIvtIp3b8k40/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/19_R6Ejm4VSvp166CBcNnBYListWUsoUC/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1hIrKHBsQGn0VRlmho4vCyX2zBDAXfmEE/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1hADiOAsSPyKxOafgZL-nC3fhqqqO05wX/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1LSC9fNf7zKzZuN0b2fInxdzeuPRnqbf-/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/12hBPJdYz8eRYlfw3nuYogNkexh4CaZ5B/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1iF9uWo2amgJURFZPYmRjLsY7DLESYzHw/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/127Ui5q9WpdAwwOJ-a9xfejIMR735qWKn/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1ZzN5f1Vd_YnFQSE_u_btNfsr_RZWJraS/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/19ZmS49yuEAkbxMtW9-3TLydnrIyu7nL8/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1zw1ZDuszO10MlaAV6f2Iaf6n0C0cpHGo/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1nskOvx1NZgzv2hsvIgsuvJt3LTI4Nl7k/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1rCfs29C12B4wfxkOdesy2DmoNg7gsYYb/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1Ai7Wq91OnZl8IS4JVhRXTq32CzXVye6t/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1kXrMAv7axyDLrPr9pZXjQ_u0oRLHn0Fn/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/12NoxAezALt2h4XRK5mz-KFKyr3iteMH8/preview" allow="autoplay"></iframe><br /><br /><iframe width="100%" height="480" src="https://drive.google.com/file/d/1ICuKygvVG4i3VJNAzP_ZA-b4kpsxm71d/preview" allow="autoplay"></iframe><br />TAS diagram of sample BH250-132. Creator An entity primarily responsible for making the resource Bereket Haileab allanite Apatite Biotite felsic granite igneous microcline monazite muscovite orthoclase Perthite Plagioclase plutonic Quartz Radiation damage Radioactive accessory minerals Rockville granite Sphene (Titanite) Zircon