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File:Great Dyke of Zimbabwe ISS.JPG

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Great_Dyke_of_Zimbabwe_ISS.JPG(720 × 480 pixels, file size: 149 KB, MIME type: image/jpeg)

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current18:10, 18 June 2020Thumbnail for version as of 18:10, 18 June 2020720 × 480 (149 KB)wikimediacommons>Tillman{{Information |description ={{en|1=The Great Dyke of Zimbabwe is a layered mafic intrusion of igneous, metal-bearing rock that has been dated to approximately 2.5 billion years old. The dyke (or dike in American English) intrudes through the even older rocks of African craton, the core of oldest rocks forming the continent of Africa. In cross section, the Great Dyke looks somewhat triangular or keel-shaped, suggesting to geologists that it rose along deep faults associated with extension of...
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