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Filtering by: Creator Hodges, John D. Academic Affiliation Geosciences Non-Academic Affiliation Oregon Explorer

Temporal and crustal effects on differentiation of tholeiite to calcalkaline and ferro-trachytic suites, High Lava Plains, Oregon, USA

Creator:

Streck, Martin J. and Grunder, Anita L.

Abstract:

Strongly bimodal, basalt-rhyolite volcanism of the High Lava Plains Province of Oregon followed the Middle Miocene flood basalts of the Pacific Northwest and extends to recent time. During the 8 m.y. of volcanism recorded in the central High Lava Plains, in western Harney Basin, three distinct mafic magmatic trends originate...

Resource Type:

Article

Full Text:

—HIGH LAVA PLAINS, OREGON 10.1029/2012GC004237 4 of 23 T ab le 1 (S am p le ). C he m ic al D at