Exploration and Estimation of Gravel Resource Potential in Southeast Chukchi Sea Continental Shelf off Kivalina, Alaska

Autor:	Debasmita Misra, Sathy Naidu, A. D'Souza, Rajive Ganguli, Sukumar Bandopadhyay
Rok vydání:	2009
Předmět:	geography geography.geographical_feature_category Continental shelf Storm surge Ocean Engineering Excavation Context (language use) Geotechnical Engineering and Engineering Geology Oceanography Permafrost Seafloor spreading Barrier island Arctic Geology
Zdroj:	Marine Georesources & Geotechnology. 27:255-272
ISSN:	1521-0618 1064-119X
Popis:	Frequent storm surges in the Alaskan arctic result in washovers and high erosion of barrier islands. The village council of Kivalina has resolved to relocate its present location on a barrier island in northwest arctic Alaska to an adjacent onshore site. The relocation plan envisages excavation of the upper 4 meters of the 25-km2 onshore permafrost ground and the construction of a foundation pad. The objective of this research is to estimate the gravel resource potential in the continental shelf off Kivalina. In this context, seismic surveys and sediment sampling were conducted. The seismic surveys were of limited use as they failed to resolve the upper 1–2 m of the seafloor. The lithostratigraphy indicated dominance of the 2.4–3.4 mm size fraction in the region north of Kivalina. The geostatistical analysis indicated an omnidirectional variogram fit to the data with ordinary kriging (OK) producing the best kriging estimate of the gravel resource potential. At least 20 × 106 m3 of gravel above 90% cut-off...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ca3354123a554b8fd57b8027500ed442 https://doi.org/10.1080/10641190903108044 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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