****************************************************************************** From: David A. Williams <David.Williams@xxxxxxx> ****************************************************************************** Colleagues: Please consider contributing an abstract to the following topical session, to be held at the 2009 Geological Society of America Meeting, Portland, Oregon (USA), October 18-21, 2009. "ERUPTIVE DEPOSITS AS KEYS TO UNDERSTANDING VOLCANIC SYSTEMS ON PLANETARY BODIES" Conveners: Nick Lang, Mercyhurst College; David A. Williams, Arizona State University Abstract deadline: August 11, 2009 Description: This session is geared towards understanding how the physical properties of volcanic landforms and deposits (composition, morphology, age, and distribution) can be used to constrain magmatic processes (magma generation, movement, and storage) on all planetary bodies. Rationale: Volcanism is a dominant process operating on planetary surfaces. Volcanism itself, though, is the last in a series of other processes that together comprise a volcanic system. These other processes operate inside a planetary body and include melting (magma generation), ascent, and storage. Volcanic systems, therefore, represent a link between planetary surfaces and interiors and are windows into understanding the interior evolution of planetary bodies. On Earth, the ability to physically study volcanic deposits and eroded remnants of volcanic systems in the field greatly enhances our ability to understand Earth's interior evolution. However, the inability to put 'boots on the ground' on other planets inhibits our ability to fully study and comprehend extraterrestrial volcanic systems, which impedes our ability to understand the evolution of those planetary interiors. Instead, we are confined to examining two dimensional images - and maybe some limited compositional data - of volcanic deposits on the surfaces of other planets. The purpose of this session is to bring together terrestrial and planetary volcanologists as a means of highlighting some possible ways of using our limited data of extraterrestrial volcanism to understand volcanic systems as a whole on other planets. Both terrestrial and extraterrestrial volcanologists are encouraged to submit to this session. Regards, Dave Williams Nick Lang ============================================================== To unsubscribe from the volcano list, send the message: signoff volcano to: listserv@xxxxxxx, or write to: volcano-request@xxxxxxxx To contribute to the volcano list, send your message to: volcano@xxxxxxxx Please do not send attachments. ==============================================================
