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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.
1

Micropaleontology of the Wesley Johns Valley and Atoka formations of the Ouachita Mountains of Oklahoma

Johansson, Folke, January 1962 (has links)
Thesis (Ph. D.)--University of Wisconsin, 1960. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 42-45).
2

Jurassic and Cretaceous palynostratigraphy of a Madagascar well

Chen, Yow-yuh January 1978 (has links)
No description available.
3

Calcareous microfossils in the Pliocene central Arctic Ocean

Atkins, Elizabeth Dale. January 1988 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1988. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 87-92).
4

Computer vision for computer-aided microfossil identification

Harrison, Adam P. January 2010 (has links)
Thesis (M.Sc.)--University of Alberta, 2010. / Title from PDF file main screen (viewed on May 7, 2010). A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Master of Science, [Department of] Electrical and Computer Engineering, University of Alberta. Includes bibliographical references.
5

Stratigraphie und Mikrofauna des Klippenmalm

Weiss, Hans, January 1949 (has links)
Inaug.-Diss.--Zürich. / Vita. Bibliography: p. 289-300.
6

Distribution and significance of foraminifera in the Atoka Formation in the central Ouachita Mountains of Oklahoma

Stark, Philip Herald, January 1963 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1963. / Typescript. Abstracted in Dissertation abstracts, v. 23 (1963) no. 9, p. 3320-21. Vita. eContent provider-neutral record in process. Description based on print version record.
7

Foraminifera from the Cretaceous of the Central Cordillera of Guatemala /

Ashworth, Edwin Thomas January 1975 (has links)
No description available.
8

Maastrichtian - Upper Eocene ostracoda of the subfamily Trachyleberidinae from Iraq, Jordan and Syria

Al-Sheikhly, Saad Sami Jassim. January 1980 (has links)
Thesis (Ph.D.) - University of Glasgow, 1980. / Ph.D. thesis submitted to the Department of Geology, University of Glasgow, 1980. Includes bibliographical references. Print version also available.
9

Establishing a high-frequency standard reference sequence stratigraphy, sea-level curve, and biostratigraphy for Morrowan strata of the Lower Absaroka I time slice based upon the Bird Spring Formation, Arrow Canyon, Nevada /

Briggs, Kristen Phelps, January 2005 (has links) (PDF)
Thesis (M.S.)--Brigham Young University. Dept. of Geology, 2005. / Includes bibliographical references (p. 37-40).
10

Micropaleontological and μXRF Applications in Coastal Geoarchaeological Studies

Steele, Riley Elaine January 2024 (has links)
The development of tools and techniques used in paleoenvironmental studies is important for the advancement of geoarchaeological research. Geoarchaeological studies of ancient harbours involve the integration of paleoenvironmental data with archaeological findings, allowing for a more comprehensive understanding of site development and regional maritime trade. This dissertation highlights and/or explores novel applications of microfossils and micro-X-ray fluorescence (μXRF) core scanning data in paleoenvironmental reconstructions within three ancient harbour studies. Foraminifera, diatom, pollen, μXRF, carbon stable isotope, and radiocarbon dating results from underwater cave sediments on the eastern coast of the Yucatán Peninsula indicate that the region’s wetlands developed between 1157 BCE and 312 CE. Continued sea-level rise after ~312 CE allowed canoe access through a channel from the Caribbean Sea to Muyil, a Classic Maya maritime port site. Development of the wetlands may have implications for increased maritime trade on the Yucatán’s eastern coast during the Postclassic (925–1550 CE). This study demonstrates the importance of karst cave systems for obtaining paleoenvironmental records and provides a first assessment of the diatom community that has been transported into the sampled cave system. The novel application of epiphytic foraminifera as biostratigraphic indicators was investigated at Caesarea, Israel. Benthic foraminifera assemblages indicated that the emplacement of hard harbour structures along the sandy coast between 21–10 BCE altered the environmental conditions and impacted the nearby ecological communities. Epiphytic foraminifera, in particular Pararotalia calcariformata, were found to be useful indicators for the timing of harbour construction at Caesarea. μXRF and magnetic susceptibility results also supported the presence of increased harbour material (i.e., kurkar and volcanic ash) in offshore sediments over time. This study demonstrates that epiphytic foraminifera can be cost-effective biostratigraphic indicators in geoarchaeological studies. Results also confirm that P. calcariformata is endemic to Israel and is not a recent arrival following the opening of the Suez Canal. Foraminifera, testate amoebae, μXRF, and radiocarbon dating results from sediment cores collected from two lagoons, Khor Al Balid and Khor Rori, on the southern coast of Oman indicate that the lagoons closed off from the sea between the 12th and 15th centuries CE. Prior to lagoon formation, these two sites formed natural harbours that were the locations of major maritime trade ports. Progressive siltation and sand accumulation along the coastline after the 15th century likely impacted shipping activities, contributing to abandonment of the city near Khor Al Balid. Evidence of a marine overwash event across most cores from both sites dating to the 18th–19th century CE suggests that an extreme wave event (e.g., tsunami or large tropical cyclone) may have also contributed to the decline of the city. The results of this study provide an important paleoenvironmental context for previous archaeological findings. / Dissertation / Doctor of Philosophy (PhD)

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