Sachs Patera is a feature on Venus. Defined as a sag-caldera, Sachs is an elliptical depression 130 meters (81 feet) in depth, spanning 40 kilometers (25 mi) in width along its longest axis. The morphology implies that a chamber of molten material drained and collapsed, forming a depression surrounded by concentric scarps spaced 2 to 5 kilometres (1.2 to 3.1 mi) apart. The arc-shaped set of scarps, extending out to the north from the prominent ellipse, is evidence for a separate episode of withdrawal; the small lobe-shaped extension to the southwest may represent an additional event. Solidified lava flows 10 to 25 kilometres (6.2 to 15.5 mi) long give the caldera its flower-like appearance. The flows are a lighter tone of gray in the radar data because the lava is blockier in texture and consequently returns more radar waves. Much of the lava, which was evacuated from the chamber, probably traveled to other locations underground, while some of it may have surfaced further south. This is unlike calderas on Earth, where a rim of lava builds up in the immediate vicinity of the caldera.
sachs, patera, this, article, includes, list, references, related, reading, external, links, sources, remain, unclear, because, lacks, inline, citations, please, help, improve, this, article, introducing, more, precise, citations, july, 2013, learn, when, remo. This article includes a list of references related reading or external links but its sources remain unclear because it lacks inline citations Please help improve this article by introducing more precise citations July 2013 Learn how and when to remove this message Sachs Patera is a feature on Venus Defined as a sag caldera Sachs is an elliptical depression 130 meters 81 feet in depth spanning 40 kilometers 25 mi in width along its longest axis The morphology implies that a chamber of molten material drained and collapsed forming a depression surrounded by concentric scarps spaced 2 to 5 kilometres 1 2 to 3 1 mi apart The arc shaped set of scarps extending out to the north from the prominent ellipse is evidence for a separate episode of withdrawal the small lobe shaped extension to the southwest may represent an additional event Solidified lava flows 10 to 25 kilometres 6 2 to 15 5 mi long give the caldera its flower like appearance The flows are a lighter tone of gray in the radar data because the lava is blockier in texture and consequently returns more radar waves Much of the lava which was evacuated from the chamber probably traveled to other locations underground while some of it may have surfaced further south This is unlike calderas on Earth where a rim of lava builds up in the immediate vicinity of the caldera Sachs PateraMagellan radar image of SachsFeature typePateraCoordinates49 06 N 334 12 E 49 1 N 334 2 E 49 1 334 2Diameter65 0 kmEponymNelly SachsNotes editReferences edit Venus Sag Caldera Sachs Patera NASA JPL Retrieved 24 November 2010 nbsp This article about an extraterrestrial geological feature is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Sachs Patera amp oldid 1187990407, wikipedia, wiki, book, books, library,
