3 edition of Cycling of phosphorus and manganese in the Arabian Sea during the Late Quaternary = found in the catalog.
Cycling of phosphorus and manganese in the Arabian Sea during the Late Quaternary =
Sjoerd Johannes Schenau
|Other titles||Fosfor en mangaan cycli in de Arabische Zee tijdens het Laat Kwartair|
|Statement||Sjoerd J. Schenau.|
|Series||Geologica Ultraiectina -- no. 182|
|LC Classifications||QH344 .S34 1999|
|The Physical Object|
|Pagination||184 p. :|
|Number of Pages||184|
|LC Control Number||2009433128|
Heavy mineral variation in the deep sea sediment of southeastern Arabian Sea during the past 32 kyr Vaseem Akaram,SSDas∗,A K Rai andGaurav Mishra Department of Earth and Planetary Sciences, University of Allahabad, Allahabad , India. Primary productivity and nutrient mass balances during the late Pleistocene in the Southern Ocean and equatorial Pacific Ocean (sole PI) The effects of manganese (II) and iron (II) on the cathodoluminescence signal in synthetic apatite. G.L., in review. Carbon and phosphorus cycling in Arabian Sea sediments across the oxygen minimum.
Remote sensing of meteorological parameters with the aid of a clear-air Doppler radar
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Promotor: Prof. c.H. van der Weijden Department of Geochemistry, Utrecht University Utrecht, The Netherlands. Co-promoter: Dr. de Lange Department of. M.A PrinsPelagic, hemipelagic and turbidite deposition in the Arabian Sea during the late Quaternary: unravelling the signals of eolian and fluvial sediment supply as functions of tectonics, sea-level and climate change by means of end-member modelling of siliciclastic grain-size distributions.
(PhD thesis, Utrecht, Utrecht University)Cited by: Here, sedimentary manganese, iron, and sulphur cycling are studied at sites above, within and below the OMZ on the Pakistan margin of the Arabian Sea.
In this study the response of sedimentary phosphorus (P) burial to changes in primary productivity and bottom water oxygen concentrations during the Late Quaternary is investigated, using two sediment cores from the Arabian Sea, one recovered from the continental slope and the other from the deep by: Phosphorus burial as a function of paleoproductivity and redox conditions in Arabian Sea sediments oxygen concentrations during the Late Quaternary is investigated, using two sediment cores.
Patil S.K., Singh A.D. () New Record of Magnetic Properties of Late Quaternary Sediments from the Eastern Arabian Sea (off Goa): Inferences on Palaeoclimate. In: Sinha R., Ravindra R.
(eds) Earth System Processes and Disaster Management. Society of Earth Scientists Series. Springer, Berlin, Heidelberg. First Online 11 May Cited by: 2. Suthhof A., Ittekkot V.
and Gaye-Haake B. Millennial-oscillation of denitrification in tensity in the Arabian Sea during the late Quaternary and its potential Cycling of phosphorus and manganese in the Arabian Sea during the Late Quaternary = book on atmospheric N 2 O and global climate. Global Biogeochem Cycl ; Cited by: Pelagic, hemipelagic and turbidite deposition in the Arabian Sea during the late quaternary: unravelling the signals of eolian and fluvial sediment supply as functions of tectonics, sea-level and climate Cycling of phosphorus and manganese in the Arabian Sea during the Late Quaternary = book by means of end-member modelling of siliciclastic grain-size distributionsCited by: S.
Naqvi et al.: The Arabian Sea as a high-nutrient, low-chlorophyll region during the late Southwest Monsoon that a large part of the Arabian Sea falls within the juris-diction of countries that surround this relatively small basin on three sides.
The File Size: 1MB. Major negative oxygen isotopic anomalies in planktonic foraminifera are associated with deep-sea anoxic mud layers (sapropels) deposited years ago in the eastern Mediterranean.
The isotopic depletion in surface-dwelling foraminifera is significantly greater than in mesopelagic foraminifera. This difference in isotopic response suggests that surface-water. Biogeochemistry of iron in the Arabian Sea James W. Moffett,*1 Jagruti Vedamati,†1 Tyler J. Goepfert,1 Anil Pratihary,2 Mangesh Gauns,2 S.
Naqvi2 1Department of Biological Sciences, University of Southern California, Los Angeles, California 2National Institute of Oceanography, Council of Scientific and Industrial Research, Dona Paula, Goa, India Cited by: Phanerozoic cycles of sea-level change on the Arabian Platform Bilal U.
Haq and Abdul Motaleb Al-Qahtani magnitude of incision during sea-level falls and better volumetric estimates of reservoir facies during During Late Ordovician times (while the Arabian Plate occupied relatively high southern latitudinal. Biogeochemistry of oxygen Cycling of phosphorus and manganese in the Arabian Sea during the Late Quaternary = book zone (OMZ) sediments, which are characterized by high input of labile organic matter, have crucial bearings on the benthic biota, gas and metal fluxes across the Cited by: 9.
MAGNETOSTRATIGRAPHIC AND BIOSTRATIGRAPHIC SYNTHESIS, LEGARABIAN ABSTRACT During the late early Miocene to early middle Miocene, the Owen Ridge was uplifted to a sufficient height as to be above the realm of turbidite deposition.
Monsoonal-induced upwelling appears to have been initiated during the Mio- tion of the Arabian Sea. The early deglacial monsoon intensification started at approx. 16 ka B.P., which was further reduced during ka B.P., synchronous with the global and regional climatic fluctuations.
Maximum humidity was inferred between 9 and 6 ka B.P. and is comparable with similar records from this region. ACCEPTED MANUSCRIPT Phosphorus cycling in marine sediments: Advances and Challenges Delphine Defforey1 and Adina Paytan1,2* 1Department of Earth and Planetary Sciences, University of California, Santa Cruz, High St., Santa Cruz, CA,USA.
2Institute of Marine Sciences, University of California, Santa Cruz, High St., Santa Cruz, CA. Winter cooling and mixing brings nutrients (nitrate and phosphate) to the surface waters over large parts of the northern Arabian Sea, but the rates of primary production as well as carbon export from the euphotic zone are not especially high during the northeast monsoon.
Paleoenvironmental signiﬁcance of clay mineral assemblages in the southeastern Arabian Sea during last 30 kyr Siddhartha Sankar Das1,∗, Ajai K Rai1, Vaseem Akaram1, Dhananjai Verma1, A C Pandey2, Koushik Dutta3,4 and G V Ravi Prasad3,5 1Department of Earth & Planetary Sciences, University of Allahabad, AllahabadIndia.
2Department of Ocean &. Title: The Late Quaternary History of Biogeochemical Cycling of carbon: Language: English: Author, co-author: Pedersen [ > > ]: François, R.
[ > > ] François Cited by: Sedimentary environmental change induced from late Quaternary sea-level change in the Bonaparte Gulf, northwestern Australia Takeshige Ishiwa1,2*, Yusuke Yokoyama 1,2*, Yosuke Miyairi 1, Minoru Ikehara3 and Stephen Obrochta4 Abstract Low-latitude continental shelves, mixed siliciclastic–carbonate sedimentary systems, provide an understanding ofCited by: 3.
Benthic foraminifers and ostracodes from three boreholes (GK, GK, GK95) at Laizhou Bay, Bohai Sea, were utilized to interpret the paleoenvironments of deposition and elucidate the coastal response to global sea-level changes since the late by: 1.
During these anoxic conditions, the regenerative P appears to induce secondary benthic algal blooms and promotes eutrophication in these inland bays through late summer. By the late fall and into early spring, sulfide production diminished and oxic conditions were reestablished as indicated by increases in solid amorphous and crystalline Fe(III Cited by: Cycling of iron and manganese in freshwater, estuarine and deep sea sediments PROEFSCHRIFT ter verkrijging van het doctoraat in de Wiskunde en Natuurwetenschappen aan de Rijksuniversiteit Groningen op gezag van de Rector Magnificus, dr.
Zwarts, in het openbaar te verdedigen op vrijdag 27 juni om uur door Imola Ferro geboren op Because of the depositional features of late Paleozoic shelves, during sea-level highstands, the small amount of clastic sediment that was available was retained mainly in the shoreline clastic facies and relatively little of it by-passed the shallow subtidal carbonate by: The Oceanic Phosphorus Cycle Sea In addition, The amount of new carbon fixed during photosynthesis that is subsequently exported from the eu-photic zone is known as export production.
This export production can influence global climate through the seques. Glacial to interglacial climate changes have been related to organic carbon cycling in oceanic surface waters1, and this possible link has led to the development of sedimentary tracers of past.
Satellite Remote Sensing of Chlorophyll-a Distribution in the Northeast Arabian Sea DanLing TANGa,*, B. SATYANARAYANAa, R.P. SINGHb, Hui ZHAOa aLaboratory for Tropical Marine Environmental Dynamics, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, West Xiangang Road, P.R.
China, during routine core description (e.g., Wetzel, ; Wetzel and Wijay-ananda, ; Droser and Bottjer, ). The m of sediment recovered from the eastern equatorial Pacific during Leg provided an ideal opportunity to document the spatial and temporal variations in trace-fossil diversity and abundance in a wide range of deep-seaFile Size: 2MB.
The Mediterranean Sea (MS) is an oligotrophic marine basin despite being semi-enclosed with unusually low inorganic phosphorus (P) and nitrogen (N) concentrations, and high nitrate (NO₃):phosphate (PO₄) ratios comparative to the global by: 1. the Arabian landmass (Weyhenmeyer et al., ).
However, arid conditions generally dominate during the winter monsoon, and paleostudies suggest that the origin of atmospheric water vapor changed from a dominantly northern Mediterranean source (modern pattern), to a primarily southern Indian Ocean source during the Late.
The last glaciation, prior to the Quaternary ice ages, took place during late Carboniferous to basal Permian ca m.y. ago. The world began to cool rapidly in late Tertiary about 40 m.y.
ago. By about m.y. ago, the world had cooled so much that ice sheets began to form in northern Canada and Scandinavia.
Trough varied considerably during the late Quaternary in response to sea level [Francis et al., ]. Consequently, this area provides an intriguing location to test the sensi-tivity of the benthic foraminiferal assemblages to paleo-environmental changes in a poorly studied but relatively common depositional setting.
In this work, we examine. 28 E l Frihmat et al.– Late Quaternary history of the Mediterranean outflow to the Gulf of Cadiz In addition, the changes in the Mediterranean Outflow Water through the strait of Gibraltar since the Last Glacial Maximum are well recorded in the sediments deposited on.
The concentrations of trace metals in water (dissolved and particulate forms) and 'looplankton from the eastern Arabian Sea during intermonsoon fall and spring intermonsoon are presented in Fig. to & to During intermonsoon fall,File Size: KB.
Glaciations in the Arabian Peninsula Fig. 9: Polygonal cracks of two orders of size in the sandstones of the Kohlan Group, Kohlan area, Yemen Arab Republic. Similar polygonal cracks have been recently recorded by the present author, in Jabal El-Nabi Shu'ayb which lies about 28 km.
west-southwest of Sana' (Fig. 1).Cited by: 2. Ion Interactions at the Mineral-Water Interface During Biogeochemical Iron and Manganese Cycling by Margaret A. Hinkle A dissertation presented to the Graduate School of Arts & Sciences of Washington University in partial fulfillment of the requirements for the degree of Doctor of Philosophy May St.
Louis, Missouri. Abstract The seasonal variation in oxidized and reduced pools of Mn, Fe and S, as well as the rates of SO 4 2-reduction, were studied in a fine-grained sediment. Below the mm thick oxic zone, a zone of net Mn reduction extended to cm depth, while iron reduction was found to 4.
Planktonic Foraminifera in Sediment Samples from the Eastern Arabian Sea K. KAMESWARA RAO National Institute of Oceanography, ~anaji ManuscriPt received 24 January Twenty-two. species af planktanic Faraminifera have been identified fram the battam sedi ments af the Arabian Sea aff Bambay and their percentage accurrence has been by: 7.
These elements may then travel over long distances before they are being taken up by biological organisms. In the recycling of elements such as phosphorus, calcium and potassium, the soil is the main abiotic environment and thus their movement is usually over a local region. More about Biogeochemical Cycles.
Abstract A GOOD deal of information on late Quaternary moist periods in East Africa and Australia, derived largely from the dating and analysis of lake sediments, has been collected over recent years Although fossil lake beds have long been known to exist in Arabiathey have received scant attention.I report here the results of a preliminary attempt to establish the age.
Arabian Sea during intermonsoon fall ranged from pdf mg/l, to mgll and to mg/l (values average to mg/l, mg/l and mg/l) in the inner shelf, outer shelf and offshore transects respectively.PALEOMAGNETIC RESULTS FOR THE INDIAN AND ARABIAN PLATES FROM ARABIAN SEA CORES R.
B. Whitmarsh, National Institute of Oceanography, Wormley, Godalming, Surrey, United Kingdom I and N. Hamilton and R. B. Kidd, Southampton University, Southampton, England INTRODUCTION The study of Vine-Matthews magnetic anomalies in theCited by: 5.Deng, Ebook, Thomas, A., Rijkenberg, M.
J. A. & Henderson, G. M. In: Earth and Planetary Science Letters.p. Research output: Contribution to journal.