The Mount Fubilan Intrusion is part of a geologically young hypabyssal stock in the Star Mountains of Papua New Guinea. This stock was mapped as the Ok Tedi Intrusive Complex and divided into four separate bodies: the Mount Fubilan, Sydney Intrusion, Kalgoorlie, and Ningi Intrusions. Hydrothermal fluids caused alteration of the Mount Fubilan, and parts of the other intrusions, to potassic and propylitic mineral assemblages and deposited gold and copper. This investigation documents similarities and differences between the least-altered intrusive rocks of the complex and those that have undergone potassic metasomatism. The study involved detailed petrographic examination of more than two hundred thin-sections, major-oxide and trace element chemistry, and microprobe analyses of individual minerals. The magmas that crystallized to form the stock are shown to be intermediate in composition between andesite and latite. They were quartz-saturated, metaluminous, weakly iron-rich, and crystallized under oxidizing conditions. The principal mineral phases in the least-altered intrusive rocks are andesine, pyroxene, orthoclase, and quartz. The accessory mineral suite in least-altered rocks includes biotite, sphene, apatite, magnetite, and zircon. Hornblende is present in a few samples Magmatic pyroxene is diopsidic in composition; hornblendes is cdenitic; and biotite is annitic. Potassic alteration has converted andesine to orthoclase, or mixtures of albite and orthoclase, ferro magnesian minerals to hydrothermal biotite, sphene to rutile, and magnetite to pyrite and chalcopyrite. Hydrothermal biotite is phlogopitic in composition. Gold and copper were concentrated in the zone of potassic alteration. The mineralogical transformation of the intrusive rocks of the Mount Fubilan and associated intrusions was caused by the infiltration of hydrothermal fluids that deposited potassium, gold, and copper and that leached and removed virtually all other rock constituents. Leached components were transported away from the zone of potassic alteration and deposited in peripheral parts of the intrusive complex to form propylites, endoskarn, and massive replacement bodies or removed from the system entirely. The Mount Fubilan intrusion was closely similar in chemistry and mineralogy to the other intrusions of the complex prior to alteration. Petrochemical differences between the Mount Fubilan Intrusion and the other intrusions were produced entirely by hydrothermal alteration. / Graduation date: 2000

New Guinea has long been recognized by geologists as the location of geologically recent mountain building. This study combined field mapping, stratigraphic and remote sensing analysis along and near the Gunung Bijih (Ertsberg) mine road and mining district in order to analyze the geologic development of the collisional New Guinea orogen. As a result of the youthfulness and the quality of data, it is possible to constrain distinct parts of orogenic evolution to 1 or 2 m.y. The southern Central Range of New Guinea is located on the northern Australian continental margin. The southern one-third of the Central Range, exposed along the Gunung Bijih mine access road, is a 30-km-wide, north-dipping homocline exposing an apparently 18-km-thick Precambrian or Early Paleozoic to Cenozoic sequence. Following rifting in the early Mesozoic and until the Middle Miocene, the northern Australian continent was a passive margin. The Central Range of Irian Jaya formed when the Australian passive margin was subducted beneath and collided with a north-dipping subduction zone in the Middle Miocene. Litho- and biostratigraphic analysis of the New Guinea Limestone Group in the Gunung Bijih mining district and regional stratigraphic correlation indicates that the first evidence of subaerial exposure and erosion of the orogen is the widespread deposition of siliciclastic, synorogenic strata at ~12 Ma. I name this event the Central Range Orogeny. There is no evidence of an Oligocene orogenic event in the Irian Jaya region as has been described to the east in Papuan New Guinea. Deformation in the Central Range is dominated by ~12 to ~4 Ma southwest verging (210°-220°) contraction and minor east-west wrenching. This deformation is equally accommodated, there is no evidence for strain partitioning in the Central Range. Lithospheric-scale cross sections, incorporating field observations, predict the Central Range Orogeny is divided into a pre-collision and collisional stage. The pre-collision stage is the bulldozing of passive margin sediments in a north dipping subduction zone. The collision stage occurs when buoyant Australian lithosphere can not be subducted. The collision stage results in basement involved deformation and lithospheric delamination of the already subducted Australian plate. / text

Zugl.: Speyer, Dt. Hochsch. für Verwaltungswiss., Diss., 2008

Thesis (Ph. D.)--University of Chicago, Department of Anthropology, December 1999. / Includes bibliographical references. Also available on the Internet.

Thesis (M.A.)--[University of] London, 1965. / Bibliography: leaves [i] - iv.

Relationships among the Aesthetic, culture, and music are problematic- Frequently considered as epiphenomenal to culture, music and the arts are typically seen as adjuncts to ceremonial activity- This dissertation examines the nature of the Aesthetic, music and performance in the context of the Lolo, Araigilpua Village, West New Britain Province, Papua New Guinea, in an attempt to develop a definition of the Aesthetic applicable for cross-cultural research and to discover the ways in which the Aesthetic and culture articulate. For the purposes of this dissertation, the Aesthetic is defined as that facet of religion focused on responses to extraordinary powers thought to maintain what are considered to be proper relationships between human members of a community and extraordinary powers. Three forms of aesthetics, social, performance, and musical, are taken as the means and methods of directing interactions between man and extraordinary powers. At present, the Lolo are engaged in a process of secularisation resulting primarily from the introduction of Christianity, Western medicine and money. This dissertation examines the relationship between the Aesthetic and social life, and addresses the impact of changes to the Aesthetic. / Arts, Faculty of / Anthropology, Department of / Graduate

No description available.

This study describes the resource management practices of a rural community located in Morobe Province, Papua New Guinea. Lababia, a community of 500 people, is located in a coastal rainforest environment and is dependant for its livelihood on swidden agriculture and fishing. Lababia is also the site of an integrated conservation and development project facilitated by a non-governmental organisation based in a nearby urban centre. / The key resources on which Lababia depends are managed as the common property of either the village-as-a-whole or the various kin groups resident in the village, and for that reason common property theory has been used to inform the design of the research project and the analysis and interpretation of research results. However, the social foundations of resource management systems and the influence of external factors, commodity markets in particular, are not adequately represented in some of the more widely used analytical frameworks developed by common property theorists. These factors are of fundamental importance to the Lababia commons because of the many social, political and economic changes that have occurred there over the last century. For that reason the Lababia commons is referred to as a commons-in-transition . / Ethnographic and historical analysis, informed by common property theory, is used to develop a description of the property rights system existing at Lababia and resource management practices in the key sectors of fishing and agriculture. The management of forest resources is described on the basis of a comparison with Kui, a nearby village that, unlike Lababia, has allowed industrial logging activities on their lands. The impact of the conservation and development project on village life is also assessed and the study concludes by developing an analytical framework suitable to the Lababia commons and one that facilitates the development of policy appropriate to the planning of sustainable development projects generally and conservation and development projects in particular.

No description available.

No description available.