Global patterns in functional rarity of marine fish - Nature
2022年2月15日 · We find concentrations of rarity, in excess of what is predicted by a null expectation, near the coasts and at higher latitudes. We also observe mismatches between these rarity hotspots and marine...
13 Most Elusive Types of Seashells - Rarest.org
2024年7月20日 · Discovering a rare seashell on the beach is like finding a hidden treasure. These elusive shells captivate collectors with their unique beauty and intricate patterns. Each shell tells a story of the deep seas and the challenges of reaching their habitats.
Influence of goethite nanophase on rare-earth element patterns …
2024年5月20日 · In this study, we investigate the microscale and nanoscale mineralogical and geochemical characteristics of the REE-enriched Early Cambrian phosphorites. In situ elemental analyses reveal that the codeposited phosphates (“bell-shaped” REE pattern) and carbonates (“modern seawater-like” pattern) have different REE patterns.
8 Rarest Seashells in The World - Rarest.org
2022年8月19日 · Here we list 8 of the rarest seashells found today around the world. They are adored for their beauty, glamour, and perfection. 8. Venus Comb Murex Shell. Appearance: Off-white with a brownish tinge. It has a long siphonal canal and numerous spines.
Rare earth element geochemistry characteristics of seawater …
2017年11月28日 · In order to determine the geochemistry characteristics and migration processes of REE, seawater, porewater and sediment samples were systematically collected from the western Pacific for REE...
Mysteries of the Red Sea - Woods Hole Oceanographic Institution
2018年10月25日 · The Red Sea also has several characteristics not seen in other oceans: extremely warm temperatures, high evaporation rates, odd circulation patterns, and a rare current that sometimes disappears in winter.
Rare earth elements in seawater: particle association, shale ...
1999年2月1日 · Shale-normalized patterns of dissolved REEs were examined in detail, based on three datasets of composite shales available in the literature. Distinctively positive La and only slightly positive Gd anomalies were identified together with well-documented negative Ce-anomaly as common features of seawater.
Frontiers | Rare Earth Element Distribution in the NE Atlantic ...
2018年4月29日 · Seawater rare earth element (REE) concentrations are increasingly applied to reconstruct water mass histories by exploiting relative changes in the distinctive normalised patterns. However, the mechanisms by which water masses gain their patterns are …
Frontiers | Rare earth element behaviour in seawater under the ...
2022年7月27日 · Our findings reveal that OM-cycling influences concentration patterns of dREEs via ad- and desorption processes as well as organic complexation with parts of the OM pool, suggesting these processes can have a significant impact on dREE concentrations in the natural marine environment under high OM conditions.
Reduced evolutionary constraint accompanies ongoing radiation …
6 天之前 · Woolley, S. N. C. et al. Deep-sea diversity patterns are shaped by energy availability. Nature 533 , 393–396 (2016). Article CAS PubMed Google Scholar