By Towhida Rashid
ISBN-10: 9814560987
ISBN-13: 9789814560986
ISBN-10: 9814560995
ISBN-13: 9789814560993
This short bargains with the reconstruction of Holocene paleoenvironment within the primary a part of Bangladesh when it comes to relative sea-level (RSL) alterations that's 2 hundred km north from the current beach. Lithofacies features, mangal peat, diatom and paleophysiographical evidences have been thought of to reconstruct the earlier place and C-14 a long time have been used to figure out the time of formation of the relative sea-level throughout the Holocene. With ordinary reference datum the mandatory m.s.l. on the floor of 5 sections are calculate and the RSL curve means that Bangladesh has skilled mid Holocene RSL transgressions punctuated through regressions. The ample marine diatom and mangrove pollens exhibits that the top RSL transgression in Bangladesh is round 6000 cal BP that is attained no less than 4.5 to 5m greater than the trendy m.s.l. After this section, the relative sea-level began to fall and hence a freshwater peat built round 5980―5700 cal BP. The plentiful mangrove pollens in salt-marsh succession indicates the regression round 5500 cal BP and, the peak was once 1―2 m better than the trendy sea point. those and extra fascinating findings are mentioned during this Brief.
Read Online or Download Holocene Sea-level Scenarios in Bangladesh PDF
Best oceanography books
Encyclopedia of Marine Science (Science Encyclopedia)
A useful reference, "Encyclopedia of Marine technological know-how" explores the significant components and problems with this center technological know-how self-discipline in additional than six hundred entries, 20 essays, and greater than 2 hundred black-and-white images and line illustrations. This accomplished new encyclopedia brings jointly details on marine technological know-how from its part and associate sciences, besides details on know-how, trade, company, society, heritage, and extra.
Parameterization of the wind stress--drag--over the sea is important to many features of air-sea interplay, which in flip is key for versions of climate prediction and weather modeling. Wind pressure over the sea brings jointly thirty of the world's best specialists in air-sea interplay, less than the auspices of the clinical Committee on Oceanic learn.
Small Islands: Marine Science and Sustainable Development
Concerning the ProductPublished by way of the yank Geophysical Union as a part of the Coastal and Estuarine stories sequence. Small tropical and subtropical islands are relatively attuned to the results of the encircling ocean and surroundings. often, those islands are densely populated and depend on the ocean for sustenance and fiscal viability.
Origin and Formation of Coastal Boulder Deposits at Galway Bay and the Aran Islands, Western Ireland
This ebook offers geomorphological and sedimentological elements of Holocene boulder ridges alongside the sea coast of western eire (the Aran Islands and Galway Bay). Given those boulders’ dimension, quantity and altitude, they're one of the so much extraordinary deposits moved by means of marine forces all over the world and feature challenged researchers to resolve their enigmatic heritage.
Extra info for Holocene Sea-level Scenarios in Bangladesh
Example text
Bengal Geosyncline is one of the world’s largest geosyncline that includes the Bengal Basin and the Bay of Bengal. The evolution of the Bengal Basin started in the Permo-Carboniferous with the sedimentation in the faulted Gondwana Basins. The break-up of the Gondwanaland in the Cretaceous Period and the marine transgression led to the sedimentation in the Bengal Geosyncline. Bengal Basin, occupied mostly by Bangladesh, is the result of plate collision between the Indian plate and the Asian plate.
In: Warrick RA, Barrow EM, Wigley TML (eds) Climate and sea level change: observation, projection and implication. Cambridge University Press, Britain, pp 25–44 Grindord J (1985) The palynology of mangroves on a prograde shore, Princess Charlotte Bay, North Queensland, Australia. J Biogeogr 12:323–348 Haq BU, Boersma A (1978) Introduction to Marine Micropaleontology. Elsevier, New York, p 376 Higgins CG (1994) Subsurface environment of beaches—temperature and salinity. In: Geologic Society of America, abstracts with programs, Seattle meeting, p A-364 Ireland S (1987) The Holocene sedimentary history of the coastal lagoon of Rio de Janiero state, Brazil.
Longer-term changes are influenced by changes in the Earth’s climates. Consequently, the level is better defined as mean sea level, the height of the sea surface averaged over all stages of the tide over a long period of time (Britanica Concise Encyclopedia). Sea level, the level of the sea, serves as the datum used for measurement of land elevations and ocean depths. Theoretically, one would expect sea level to be a fixed and permanent horizontal surface on the face of the earth, and as a starting approximation, this is true.
Holocene Sea-level Scenarios in Bangladesh by Towhida Rashid
by Daniel
4.1