Matches in SemOpenAlex for { <https://semopenalex.org/work/W4386987779> ?p ?o ?g. }
Showing items 1 to 61 of
61
with 100 items per page.
- W4386987779 abstract "<strong class=journal-contentHeaderColor>Abstract.</strong> To investigate regional and temporal variations in the sources and atmospheric transport processes for mineral dust deposited on the Greenland Ice Sheet, we analysed the morphology and mineral composition of dust in an ice core from northeastern Greenland (East Greenland Ice-Core Project, EGRIP), representing the period from 1910 to 2013, using scanning electron microscopy and energy-dispersive X-ray spectroscopy, and compared the results with those previously obtained for an ice core from northwestern Greenland (SIGMA-D). The composition of the SIGMA-D ice-core dust, comprising mostly silicate minerals, varied on a multi-decadal timescale due to an increased contribution of minerals originating from local ice-free areas during recent warming periods. In contrast, for the EGRIP ice-core dust, also consisting mostly of silicate minerals, there was relatively low compositional variation among the samples, suggesting that the mineral sources have not changed dramatically over the past 100 years. The subtle variation in the EGRIP ice-core mineral composition is likely due to a minor contribution of local dust. The type of silicate minerals differed significantly between the two ice cores; micas and chlorite, which form in cold dry regions, were abundant in the EGRIP ice core, whereas kaolinite, which forms in warm humid regions, was abundant in the SIGMA-D ice core. This indicates that the EGRIP ice-core dust likely originated from different geological sources than those for the SIGMA-D dust. A back-trajectory analysis indicated that the ice-core dust was transported from Northern Eurasia and North America to the EGRIP site, and that the contribution from each source was likely smaller and larger, respectively, than those for the SIGMA-D ice core. Furthermore, the higher illite content in the EGRIP ice core suggests dust transportation from Asian deserts. Although the back-trajectory analysis suggests that most of the air mass that arrived at the EGRIP site came from the Greenland coast, the mineral grain size and composition results showed that the local dust contribution was likely small." @default.
- W4386987779 created "2023-09-24" @default.
- W4386987779 creator A5021838158 @default.
- W4386987779 date "2023-09-23" @default.
- W4386987779 modified "2023-10-18" @default.
- W4386987779 title "Reply on RC1" @default.
- W4386987779 doi "https://doi.org/10.5194/egusphere-2023-1666-ac1" @default.
- W4386987779 hasPublicationYear "2023" @default.
- W4386987779 type Work @default.
- W4386987779 citedByCount "0" @default.
- W4386987779 crossrefType "peer-review" @default.
- W4386987779 hasAuthorship W4386987779A5021838158 @default.
- W4386987779 hasBestOaLocation W43869877791 @default.
- W4386987779 hasConcept C100970517 @default.
- W4386987779 hasConcept C114793014 @default.
- W4386987779 hasConcept C127313418 @default.
- W4386987779 hasConcept C153294291 @default.
- W4386987779 hasConcept C160529264 @default.
- W4386987779 hasConcept C178790620 @default.
- W4386987779 hasConcept C180093795 @default.
- W4386987779 hasConcept C185592680 @default.
- W4386987779 hasConcept C199289684 @default.
- W4386987779 hasConcept C205325660 @default.
- W4386987779 hasConcept C205649164 @default.
- W4386987779 hasConcept C2776432453 @default.
- W4386987779 hasConcept C2777335606 @default.
- W4386987779 hasConcept C2779345167 @default.
- W4386987779 hasConcept C49204034 @default.
- W4386987779 hasConcept C91586092 @default.
- W4386987779 hasConceptScore W4386987779C100970517 @default.
- W4386987779 hasConceptScore W4386987779C114793014 @default.
- W4386987779 hasConceptScore W4386987779C127313418 @default.
- W4386987779 hasConceptScore W4386987779C153294291 @default.
- W4386987779 hasConceptScore W4386987779C160529264 @default.
- W4386987779 hasConceptScore W4386987779C178790620 @default.
- W4386987779 hasConceptScore W4386987779C180093795 @default.
- W4386987779 hasConceptScore W4386987779C185592680 @default.
- W4386987779 hasConceptScore W4386987779C199289684 @default.
- W4386987779 hasConceptScore W4386987779C205325660 @default.
- W4386987779 hasConceptScore W4386987779C205649164 @default.
- W4386987779 hasConceptScore W4386987779C2776432453 @default.
- W4386987779 hasConceptScore W4386987779C2777335606 @default.
- W4386987779 hasConceptScore W4386987779C2779345167 @default.
- W4386987779 hasConceptScore W4386987779C49204034 @default.
- W4386987779 hasConceptScore W4386987779C91586092 @default.
- W4386987779 hasLocation W43869877791 @default.
- W4386987779 hasOpenAccess W4386987779 @default.
- W4386987779 hasPrimaryLocation W43869877791 @default.
- W4386987779 hasRelatedWork W1963895982 @default.
- W4386987779 hasRelatedWork W1980728284 @default.
- W4386987779 hasRelatedWork W2359712334 @default.
- W4386987779 hasRelatedWork W325675128 @default.
- W4386987779 hasRelatedWork W4200074399 @default.
- W4386987779 hasRelatedWork W4303685909 @default.
- W4386987779 hasRelatedWork W4313547849 @default.
- W4386987779 hasRelatedWork W4383313507 @default.
- W4386987779 hasRelatedWork W2048874997 @default.
- W4386987779 hasRelatedWork W2268028140 @default.
- W4386987779 isParatext "false" @default.
- W4386987779 isRetracted "false" @default.
- W4386987779 workType "peer-review" @default.