View source for Hecates Tholus

[[Image:Hecates_Tholus.jpg|thumb|right|px|Hecates Tholus with [[cloud|clouds]]]]'''Hecates Tholus''' is a [[volcano]] in the [[Elysium Volcanic Region]].  

[[Image:MOLA hecates tholus.jpg |thumb|left|px|Tographic map of area around Hecates Tholus]]
Hecates is in the Cebrenia quadrangle. The volcano is at location 32.12°N 150.24°E (209.76 W)  and has a diameter of 182&nbsp;km. It is the northernmost of the Elysium volcanoes; the others are Elysium Mons and Albor Tholus.  Hecates Tholus is in the [[Cebrenia quadrangle]].

==Origin of name==
In planetary nomenclature, a "tholus" is a "small domical mountain or hill".  Hecates is named after Hecate, the goddess of the ghost-world, nightly events, and sorcery.<ref>Blunck, J.  1982.  Mars and its Satellites.  Exposition Press.  Smithtown, N.Y.</ref>

==Glaciers==

It is thought that the [[caldera]] may have had [[glacier|glaciers]] in the past.<ref>http://www.msnbc.msn/id/7209308</ref>  Some valleys on Hecates show a parallel drainage pattern.<ref>Hugh H. Kieffer  1992.  Mars. University of Arizona Press. ISBN 978-0-8165-1257-7.</ref>  Using the High Resolution Stereo Camera onboard ESA's Mars Express that is orbiting Mars, a team of researchers discovered evidence of a large explosive eruption and recent glaciers on the volcano.  Although some of the ice has sublimated into the atmosphere, the authors believe there still exists ice under a cover of debris.  They state the ice could be "accessible for automated or human exploration."<ref>Hauber, E., et al.  2005.  Discovery of flank caldera and very young glacial activity at Hecates Tholus, Mars.  Nature: 434, 356-361.</ref>  On Earth 8 million year old ice is still present in the Antarctic dry valleys under a layer of dirt.<ref>Marchant, D., et al.  2002.  Formation of patterned ground and sublimation till over Miocene glacial ice in Beacon Valley, southern Victoria Land, Antarctia.  Geol. Soc. Am. Bull.  114, 718-730.</ref>



[[Image:27108hecatechannels.jpg |thumb|center|px|Lava channels on Hecates Tholus]]

===References:===
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 [[category:Volcano]]