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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

The influence of differential production and dissolution of the stable isotope composition of planktonic foraminifera /

Erez, Jonathan. January 1979 (has links)
Thesis--Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution. / Bibliography: p. 110-119.
22

Relation of the Foraminifera to the sedimentary characteristics of the Weches formation in Texas

Feray, Dan E. January 1948 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1948. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 195-209).
23

A paleoecologic study of Foraminifera in selected Pennsylvanian cyclothems

Brown, L. F. January 1955 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1955. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves [108]-114).
24

Distribution and model studies on foraminifera living in Buttonwood Sound, Florida

Lynts, George Willard, January 1964 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1964. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 94-97).
25

Die Foraminiferen des litauisch-kurischen Jura ...

Brückmann, Rudolph. January 1904 (has links)
Inaugural dissertation - Zürich. / Each plate accompanied by leaf with descriptive letterpress. Extracted from Schriften der Physikalisch-ökonomischen Gesellschaft zu Königsberg in Pr., Bd. 45. "Verzeichnis derjenigen Werke die bei der Arbeit benutzt wurden": p. 2.
26

The stratigraphy and foraminiferal fauna of the Santa Susana formation

Bell, Frank W. January 1900 (has links)
Thesis (Masters)--California Institute of Technology, 1933. / Title from home page (viewed 05/03/10). Includes bibliographical references.
27

AUSTRAL AUTUMN AND WINTER SEASONAL AFFECTS ON BENTHIC FORAMINIFERAL COMMUNITIES: BRANSFIELD AND NORTHERN GERLACHE STRAITS

Bordelon, Laura Anne 01 December 2009 (has links)
The Southern Ocean has unique seasonal qualities due to the Antarctic Circumpolar Current (ACC) thermo-isolating the Antarctic continent. During summer months, surface primary productivity from algal blooms is very high. In the winter months, limited daylight hours (4 in winter) and formation of sea ice prevents sun light from reaching surface waters, therefore limiting productivity. The short seasons of productivity and long winters in Antarctica combined with seasonal changes in deep ocean temperatures, salinity, and fluxes of organic matter impact foraminiferal population dynamics. Fluctuations in surface primary productivity, as well as living foraminiferal assemblages have been documented around the Antarctica Peninsula, but the impact on benthic foraminiferal assemblages is poorly understood. This is a study of seasonal affects on benthic foraminiferal assemblages in the southern Bransfield-northern Gerlache Straits of the Southern Ocean. Surface sediment samples from 600 meters and 1200 meters water depth were collected during two seasonal cruises: early April to record the productivity of the end-of-summer bloom and late June to sample the less-productive winter period. Three hundred and sixty samples were collected from 7 sites and processed using standard techniques. To identify living foraminifera, samples were treated with Rose Bengal, and CellTracker Green on a select set of samples for comparison. Ninety total species were identified; seventy species from June and seventy-one from April, fifteen species of foraminifera unique to April, thirteen to June and two unique species in the CellTracker Green samples. The abundance of total living (stained tests) opportunistic benthic foraminiferal species from the 7 sampled sites show distinct temporal differences related to seasonality. An assemblage of deep water species was also found, as well as an assemblage of shallow water species. ANOVA and post hoc Tukey tests showed that the full cores must be analyzed to determine seasonal species assemblage changes. Cluster analysis and species abundances in CellTracker Green samples showed a marked difference from the Rose Bengal samples, consistent with literature that suggests the two methods differ. Fluctuating populations of foraminifera in fossil samples can be interpreted as changes in local or global climate. This study stands as a modern analog for fossil foraminiferal assemblages, and provides important information to help interpret paleoenvironmental conditions related to seasonality by defining seasonally and geographically distinct species assemblages.
28

Some aspects of the ecology of several large, symbiont-bearing foraminifera and their contribution to warm, shallow-water biofacies

Muller, Pamela Hallock January 1977 (has links)
Typescript. / Bibliography: leaves 170-179. / Microfiche. / xii, 179 leaves ill., maps
29

Neogene planktonic foraminifera : studies on Indo-Pacific oceanic sections /

Heath, Robert Sturm. January 1979 (has links) (PDF)
Thesis (Ph.D.) -- University of Adelaide, Dept. of Geology, 1981.
30

Glacio-marine foraminifera of British Columbia and Southeast Alaska

Smith, Roberta K. January 1965 (has links)
Foraminifera are described from massive, unconsolidated glacio-marine deposits probably of late Pleistocene age from the coast of British Columbia and southeast Alaska. Twenty families, 44 genera, and 102 species are recorded. The species Bolivina alexanderensis and the varieties Fissurina marginata (Montagu) var. juneauensis and Oolina collaris (Cushman) var. howensis are described as new. The Foraminifera lived in shallow water (less than 30 meters), which was cold (possible range -2°C to summer maxima of 25°C) and of variable salinities from brackish to normal marine (approximately 15°/oo to 35 /oo), with salinity at Lakelse having been the lowest. This work in combination with that of others demonstrates the existence of a foraminiferal province in high latitudes of the northern hemisphere in cold, shallow, coastal waters of brackish to normal marine salinities throughout Quaternary time. This province is notable for its wide geographic extent around North America and Eurasia. Samples studied are from the vicinities of Vancouver and Lakelse and Graham Island, British Columbia and Juneau, Alaska. Specimens were obtained from deposits at elevations from near sea level to several hundred feet above present sea level; isostatic rebound following ice load removal and local uplift along faults probably caused the present elevated exposures. The sediments consist mainly of clasts of heterogeneous grain size (clay to boulder) which rained down into near-shore marine waters from melting glacial ice. As well as Foraminifera and other marine fossils, much woody plant material occurs in the sediment. A presumably similar sedimentation pattern was observed occurring in Taku Inlet, Alaska. Shell casts in many outcrops investigated indicate marine origin of the sediment though weathering has advanced too far for retention of tests of Foraminifera. Similar deposits doubtless are widespread along the British Columbia and southeast Alaska coast and extend some distance south into the state of Washington and further north along the Alaska coast, as well as being present elsewhere in North America and Eurasia. / Science, Faculty of / Earth, Ocean and Atmospheric Sciences, Department of / Graduate

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