Volcanic flow development at Alba Patera, Mars
- Sheffield Univ. (England)
On the Alba Patera volcanic shield of Mars, a Hesperian flood-lava phase was followed by the extrusion of sheet lavas and tube-fed lavas emerging in many cases from the flanking fissures of rising domes. These events were followed by the eruption of additional sheet and tube-fed lavas from linear vents which formed complex flow fields. Later, Amazonian volcanism at Alba involved long, narrow flows from two complex summit calderas; the thermal energy outflow for some individual flows would have been substantially greater than the annual heat loss of the earth through volcanism, implying that the process of patera-building represented substantial Martian geological heat-loss during the planet's early volcanic-centralization stages. 40 refs.
- OSTI ID:
- 7135051
- Journal Information:
- Icarus (International Journal of the Solar System); (USA), Vol. 83; ISSN 0019-1035
- Country of Publication:
- United States
- Language:
- English
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