Lithogenic sources
WebThorium (Th) isotopes were applied to quantify the supply of lithogenic inputs from the Kerguelen Plateau to the Southern Ocean. The dissolved concentrations of 232Th and 230Th were measured following a novel pre-concentration method using the Nobias resin from 10 stations above and on the slopes of the plateau. Elevated 232Th/230Th ratios in … Web22 jun. 2016 · Here we discuss the geochemical characteristics of the loess deposits with special consideration to the source materials, including Chinese and local dust, and the …
Lithogenic sources
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Web6 nov. 2024 · Particle sources and biogeochemical cycling processes are inferred using particle-type proxies and elemental ratios. Enhanced concentrations of bio-essential L … Web13 apr. 2024 · Agricultural and lithogenic sources accounted for 45.30% of the Cu concentration, 41.60% of the Zn concentration and 50.70% of the Ni concentration. The results of the study should be used to control and reduce the heavy metal element inputs and ensure the safety and quality of vegetable production through regular monitoring, …
WebIn female mice fed a lithogenic diet consisting of 15% dairy fat, 50% sucrose, 20% casein, 1% cholesterol, 0.5% cholic acid, cellulose, vitamins, and minerals for 18 weeks, … Web16 mrt. 2024 · They are commonly used to trace lithogenic input sources and water mixing , which are in turn very important for understanding the behavior of trace elements in the oceans (Zhang et al., 2008; Zheng et al., 2016; Behrens et al., 2024a; Garcia-Solsona et al., 2024; Behrens et al., 2024).
Web7 sep. 2024 · Lithogenic particles can be delivered to SOTS by either winds or currents. A sub-surface, current-advected source of lithogenic material arriving at SOTS has previously been proposed, based on an increase in lithogenic material flux (Al tracer only) observed in 2,000 and 3,800 m depth sediment traps compared to the 1,000 m trap (Trull … Web13 mei 2024 · Lithogenic grain-size, geochemical elements of core sediments from the central Bay of Bengal (BoB) were analyzed to identify sediment provenance and explore the regional “source-sink” processes since 25 ka. Based on the geochemical compositions of core BoB-88, relative contributions of three end-member sources (Himalayan, …
Web15 jul. 2016 · (A) Zircon sources to the Middle-Late Permian Youjiang Basin of South China. Source areas of ELIP detritus are shown in yellow. (B) Cross-section of Middle–Late …
WebSources. Rivers are one of the major suppliers of LSi to marine environments. As they flow, rivers pick up fine particles, such as clays, silts, and sand, through physical weathering. Lithogenic silicic acid forms through chemical weathering, as CO 2-rich water comes into contact with silicate and aluminosilicate minerals from terrestrial rocks. green circle check mark emojiWeb11 sep. 2024 · The principal sink of silicon is typically considered to be the stripping of surface DSi by diatoms, followed by biogenic particle export and sedimentation. … flow of foodWeb26 mrt. 2024 · A lithogenic source of Fe colloids in surface oxidizing porewater has important implications for our assessment of benthic Fe supply to the ocean. The oxidizing conditions we find supporting cFe production reported here reflect those that occur commonly below the sediment–water interface of major open ocean margins and basins … flow of food production processWeb15 nov. 2024 · Earth system models have considerable potential to incorporate extensive biogeochemistry–climate interactions between the atmosphere and ocean ecosystems to aid marine management (Bonan & Doney, 2024).The atmospheric sources of macronutrient nitrogen (N) and micronutrient iron (Fe) delivered to the ocean have been disturbed by … green circle check mark iconWeb1 nov. 2024 · The lithogenic fluxes range from 0.24 to 20.47 g m −2 yr −1 (Fig. 2, Tab. 1).The samples located offshore New Zealand́s South Island show the highest lithogenic fluxes in the study area (0.72–20.47 g m −2 yr −1) but decrease with increasing distance to New Zealand (Fig. 2).The lithogenic fluxes in this area indicate a slight decline south of … green circle check markWeb28 feb. 2024 · Since the sources of anthropogenic and lithogenic PM need to be identified for efficient and effective control strategies of air quality management, most previous … flow of food from mouth to anusgreen circle chickens for sale