Tag Archives: opaline silica

HiRISE: Possible opaline silica in Elorza Crater

Elorza Crater is an approximately 40-kilometer diameter complex crater located at 304.8 degrees east, 8.76 degrees north, about 300 kilometers north of Coprates Chasma. This image centers on the southwestern portion of the central uplift, and is characterized by numerous … Continue reading

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