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Filtering by: Creator Little, Stefan A. Degree Name Doctor of Philosophy (Ph.D.) Rights Statement In Copyright Date Unknown

Revisiting Lōʻihi: Geochemistry of Kamaʻehuakanaloa Lavas Reveals Complexities in the Pre-Shield to Shield Transition and Hawaiian Mantle Plume Source

Creator:

Truong, Thi B.

Abstract:

Studies of Hawaiian volcanoes contribute valuable insights about Earth processes and mantle evolution, and are fundamental for understanding the construction of the largest volcanoes on terrestrial planets. The pre-shield stage exists in every Hawaiian volcano, but is usually blanketed by high volume tholeiitic lava flows during the main shield stage....

Resource Type:

Dissertation

Full Text:

stage, but shows a transition to early shield-type tholeiitic eruptions. In this dissertation, the
Spring Nitrogen, Plant Growth Regulator, and Defoliation Effects on Seed Production in Two Fine Fescue (Festuca rubra L.) Species

Creator:

Anderson, Nicole P.

Abstract:

One important cool-season perennial grass seed crop grown in Oregon is fine fescue (Festuca rubra L.). Open-field burning has been used for many decades to manage pests, cycle nutrients, and stabilize yield, in fine fescue seed fields, especially as stands age. Legislative restrictions currently limit open-field burning to 6,070 hectares...

Resource Type:

Dissertation

Full Text:

defoliation treatments were made with a flail mower and consisted of (i) no defoliation, (ii) early