The greater Alteration Ridge area was selected for further 3D modelling on the basis that: It hosts a cluster of P-1/P-2 surface geophysical targets; It hosts several known areas of mineralisation, including the recently discovered Cuncayoc Copper Prospect; It is adjacent to the rhyolite volcanic dome
and In broad terms, it is believed to be the centre/nearcentre of a large intermediate sulphidation (IS) epithermal system.
The giant ice-mountain Ahuna Mons is a volcanic dome
constructed by repeated eruptions of freezing salty water.
Since then, it has become evident that the dwarf planet has a plethora of intriguing geological features, such as (http://www.ibtimes.com/ceres-intriguing-bright-spots-revealed-unprecedented-detail-nasas-dawn-spacecraft-2341702) a clump of bright spots located in Occator Crater, permanently shadowed regions that may still have (http://www.ibtimes.com/dwarf-planet-ceres-has-regions-can-entrap-ice-billion-years-2390391) deposits of water-ice , and Ahuna Mons - volcanic dome
unlike any seen elsewhere in the solar system.
For example, a small, steep-sided volcanic dome
was recently recognized along the north shore of Mare Vaporum.
Ina's location on a low volcanic dome
demonstrates that some IMPs are clearly related to volcanic landforms beyond simple lava flows.
One area suspected to be an ice volcano, Ganesa Macula, does not appear to be a volcanic dome
. It may still have originated as a volcano, but it's too soon to know for sure.