Thesis--Auburn University, 2009. / Abstract. Vita. Includes bibliographical references (p. 94-96).

Thesis (Msc.(Geology))--University of Pretoria, 2009. / Summaries in English and Afrikaans. Includes bibliographical references.

Thesis (Ph. D.)--University of Wisconsin, 1966. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Differential compaction occurs within many sedimentary settings, such as alluvial and deltaic deposition, but it is within the submarine fan environment where the process is most effective due to the very high depositional porosities of the muds found there. Additionally the grain size of siliciclastic sediments within the submarine fan environment varies rapidly both horizontally and vertically, and hence the effect of differential compaction control on the depositional geometry and arrangement needs to be examined and modelled. It is also important to ascertain the rate at which sediments compact when buried, and whether compaction is complete at the end of deposition or whether it requires additional time to achieve this state. Sea- floor topography can be created if the latter case is true, and could influence subsequent deposition. Alternatively, if sea-floor topography is not created, the major control upon subsequent deposition may be the compatibility of the underlying section. Both controls will favour deposition of successive coarse clastic units above areas of fine-grained sediments, i.e. sand above shale rather than sand above sand. The Palaeocene sediments of the Central North Sea In the Montrose - Arbroath area (Blocks 22/17 and 22/18) combined with outcrop studies In southern California and New Mexico, have been used to assess the control of differential compaction on sediment distribution in a deep-sea fan setting. Differential compaction affects the Montrose - Arbroath area on a variety of scales. Firstly, differential compaction of the entire Palaeocene section across the underlying Forties - Montrose High induces structure. At a smaller scale, differential compaction may form a considerable control upon the spatial distribution of submarine fan channels and lobes that form the reservoir section throughout the area, and therefore the areal distribution of the oilfields themselves. Finally differential compaction may effect the distribution pattern of individual turbidites within such channel systems, thus forming a fine control upon the distribution of sands and shales within the reservoir. Fieldwork on submarine fan deposits in southern California has highlighted further complications to differential compaction that need to be addressed during the modelling process. Sedimentary processes such as basal loading and slumping are highly common in such deposits, and both can effect the compactional process to differing degrees. Results obtained from the modelling of stratal patterns observed in New Mexico provide information on the timing of differential compaction. It is suggested that compaction of sediments, even during early burial, requires a time interval often greater than the period of deposition, resulting in post-depositional compaction and the production of near-surface overpressure.

Magmatic stoping is a term that has been controversial almost since it was first mentioned over a century ago. Scientists have been arguing whether it plays an important part as an emplacement process of magma chambers, or whether it takes place at all. With growing evidence for both pro- and counterar guments the debate becomes tenser and the question raised is whether it is possible to find a unanimous answer. Magmatic stoping is often associated with the presence of xenoliths, “foreign” rocks that have been enclosed by magma. As parts of the roof or walls in the magma chamber detach, the pieces become trapped in it if they don’t have time to dissolve before the magma cools. The new cavities make room for a growing chamber and the possibility for magmatic stoping to be a volumetrically significant process is as well in discussion. The problematic starts early, beginning with the definitions of words like stoping, xenoliths, and rafts which are not unified. Natural findings of xenoliths in plutons are rare and speak against stoping but are often explained by xenoliths that possibly sunk down to the floor of magma chambers and become inaccessible for researchers. Nowadays there are several explanations to these statements that will be both presented and discussed in this thesis. A case study is also made from the Åva ring complex in Finland, and it has been shown to provide a fairly clear idea of the evidence for magmatic stoping. With remote sensing xenoliths have been mapped and measured and the results show that magmatic stoping is an abundant process and not something to be dismissed.

Thesis (M. Sc.) -- Memorial University of Newfoundland. / Bibliography : leaves 195-208. Also available online.

Thesis -- Memorial University of Newfoundland. / Includes reprints of three articles from Canadian journal of earth sciences. Bibliography : leaves 273-290. Also available online.

Thesis (M.Sc.)--Memorial University of Newfoundland, 2006. / Includes bibliographical references. Also available online.

Thesis (doctoral)--Universität zu Köln, 1983. / Summary in English, French, and German. Bibliography: p. 172-180.

Thesis--Yale University. / Bibliography: p. 197-205.