Mainz, Univ., Diss., 2002. / Computerdatei im Fernzugriff.

Mainz, Univ., Diss., 2002. / Computerdatei im Fernzugriff.

Mainz, University, Diss., 2002.

Thesis (M.S.)--Brigham Young University. Dept. of Geological Sciences, 2008. / Includes bibliographical references (p. 40-45).

University, Diss., 2002--Mainz.

Universiẗat, Diss., 2005--Heidelberg.

Cumulate xenoliths erupted with alkalic hawaiite lavas from a postshield cinder cone on Mauna Kea, Hawaii include a variety of mafic and ultramafic rock types. Previous studies of major and trace element compositions of minerals in the xenoliths are interpreted to show transitional to alkalic magma parentages from the postshield stage, although any orthopyroxene-bearing xenoliths are considered to have tholeiitic parents. Major element compositions minerals were analyzed using the electron microprobe and trace element compositions of clinopyroxene grains were analyzed by laser ablation inductively coupled plasma mass spectrometry. In this study, major element compositions of clinopyroxene, olivine and plagioclase grains and trace element compositions in clinopyroxene grains in xenoliths lacking orthopyroxene indicate a transitional magma parentage consistant with postshield magmas. Trace element compositions of possible parent magmas of the xenoliths were calculated from clinopyroxene compositions using partition coefficients for basaltic liquids from Hauri et al. (1994). Liquids calculated from the clinopyroxene in the xenoliths were compared to Mauna Kea shield lavas and to the postshield Hamakua and Laupahoehoe units. Chondrite-normalized rare earth element (REE) patterns of liquids calculated from both orthopyroxene-bearing xenoliths and those without orthopyroxene were similar REE patterns of both Mauna Kea postshield tholeitic and alkalic lavas. Liquids from a wehrlite and an olivine gabbronorite have REE patterns similar to tholeiitic shield basalts. To better distinguish the transitional xenolith sources as one of Mauna Kea's two postshield substages, the older, basaltic Hamakua unit or the younger hawaiitic Laupahoehoe unit, variation diagrams compared calculated liquid compositions to Mauna Kea lavas from the shield and postshield stages. Calculated liquid trace element concentrations are similar to those of Hamakua lavas.

The performance of astronomical interferometer arrays operating at (sub) millimeter wave-lengths is seriously compromised by rapid variations of atmospheric water vapour content that distort the phase coherence of incoming celestial signals. Unless corrected, these phase distortions, which vary rapidly with time and from antenna to antenna, seriously compromise the sensitivity and image quality of these arrays. Building on the success of a prototype infrared radiometer for millimeter astronomy (IRMA I), which was ued to measure atmospheric water vapour column abundance, this thesis presents results from a second generation radiometer (IRMA II) operating at the James Clerk Maxwell Telescope (JCMT) on Mauna Kea, Hawaii from December, 2000 to March, 2001. These results include comparisons with other measures of water vapour abundance available on the summit of Mauna Kea and a comparison with a theorteical curve-of-growth calculated from a new radiative transfer model, ULTRAM, developed specifically for the purpose. Plans for a third generation radiometer (IRMA III) are also be discussed. / xii, 143 leaves : ill. ; 28 cm.

Fourier transform spectroscopy (FTS) is one of the premier ways to collect source information through emitted radiation. It is so named because the principal measurement technique involves the analysis of spectra determined from the Fourier transform of a time-domain interference pattern. Given options in the field, many space- and ground-based instruments have selected Fourier transform spectrometers for their measurements. The Herschel Space Observatory, launched on May 14, 2009, has three on-board instruments. One, SPIRE, comprises a FTS paired with bolometer detector arrays. SCUBA-2 (Submillimetre Common User Bolometer Array) and FTS-2 have recently been commissioned and will be mounted within the collecting dish of the James Clerk Maxwell Telescope by Fall, 2010. The use of FTS in these two observatories will be examined. While work towards each project is independently useful, the thesis is bound by the commonality between the two, as each seeks similar answers from vastly different viewpoints. / xvii, 123 leaves : ill. (some col.) ; 29 cm

In der hawaiianischen Vorstellung steht das Land in einer Kinship- oder Verwandtschaftsbeziehung als lebendes und atmendes Familienmitglied, von dem man abstammt. Aloha 'Aina („Liebe zum Land“) ist eine Onto-Epistemologie der Indigenen auf Hawai'i, analog zu anderen gemeinschaftlichen Organisationsformen, die Mensch, Nicht-Mensch und Natur als miteinander verbunden betrachten, wie etwa im Glauben der Haudenosaunee. Anstatt Aloha 'Aina als eine Methode der „dekolonialen Klimagerechtigkeit“ zu präsentieren, die im globalen Norden nachgeahmt werden soll, und damit Aloha 'Aina von jenem „Land“ zu entfernen, theoretisiere ich ein ortsbezogenes Konstrukt, das ich „Spirit of Relationality“ nenne. Ich verknüpfe das hawaiianische Aloha 'Aina mit der politischen Theorie des Interkommunalismus des Black Panther Huey P. Newton, um dekoloniale Formen globaler Klimagerechtigkeit für nicht-Indigene Positionalitäten zu entwickeln. Der Zweck dieser Verbindung war es, den „Geist“ innerhalb der postmarxistischen Theorien neu zu verorten, wie sie von Vanessa Watts (Haudenosaunee & Anishinaabe) kritisiert werden, da dieser Geist für eurozentrische Perspektiven entfernt wurde. Indem ich hawaiianische Geschichten und zeitgenössische Poesie analysiere, vergleiche ich auch Vorstellungen von lokalem Glauben anderswo, wie auf den Philippinen und im Ästuargebiet, durch die Verbundenheit des Pazifiks und von fluidem Wasser und Luft. Metaphern von Spirit/Geist und Kinship, sowie eine materialistische Analyse des Antikolonialismus und der Arbeiterbewegung auf Hawaii führten dazu, dass ich meine eigenen Konzepte als „Pneumaterialismus“ bezeichnete. Dies ergibt sich aus der Metaphorik von „pneuma“ als liminaler Geist und hawaiianischem „ea“ („Atem,“ „Leben,“ „Wiederaufleben“), mit Wortspielen zur Metaphysik und Antagonismen zwischen Materialismus/Materie und Idealismus. Die Dynamik interkultureller und organischer Symbiosen und indigener Solidaritäten bildet ebenfalls die Grundlage dieser Metaphern. / In Indigenous Hawaiian conceptualization land is relational, a living and breathing family member that one is descended from. Aloha 'Aina (“love of the land”) is an Indigenous way of knowing and being in Hawai'i, analogous to other communal forms of organization that consider human, non-human, and nature as interrelated, such as in Haudenosaunee beliefs. Instead of presenting Aloha 'Aina as a method of “decolonial climate justice” to emulate within the global North, and thus remove Aloha 'Aina from its land, I theorize a place-based construct I call “spirit of relationality.” I connect Hawaiian Aloha 'Aina with Black Panther Huey P. Newton’s political theory of Intercommunalism towards decolonial forms of global climate justice for non-Indigenous positionalities. The purpose of this connection was to relocate “spirit” within post-Marxist theories, as critiqued by Vanessa Watts (Haudenosaunee & Anishinaabe) of having been removed for Eurocentric perspectives. Analyzing Hawaiian stories and contemporary poetry, I also compare notions of localized beliefs elsewhere, such as in the Philippines and in the estuary space, through the connectedness of the Pacific Ocean, in-flux waters, and air. Metaphors of spirit/ghost and kinship, as well as materialist analysis of anticolonialism and labor organizing in Hawai'i, led to labelling my own concepts as “Pneumaterialism.” This is from metaphors of “pneuma” as in-between spirit and Hawaiian “ea” (“breath,” “life,” “resurgence”), with wordplay on metaphysics and antagonisms between materialism/matter and idealism. Dynamics of intercultural and organic symbiosis and Indigenous solidarities also ground these metaphors.