干旱区生态环境知识资源中心(Arid): Weathering and pedogenesis of sediments and basaltic rocks on Vega Island, Antarctic Peninsula

Arid

DOI	10.1016/j.geoderma.2020.114707
	Weathering and pedogenesis of sediments and basaltic rocks on Vega Island, Antarctic Peninsula
	Siqueira, Rafael G.; Schaefer, Carlos Ernesto G. R.; Fernandes Filho, Elpidio, I; Correa, Guilherme R.; Francelino, Marcio R.; de Souza, Jose Joao L. L.; Rocha, Pablo de A.
通讯作者	Siqueira, RG
来源期刊	GEODERMA
ISSN	0016-7061
EISSN	1872-6259
出版年	2021
卷号	382
英文摘要	Vega Island in the Weddell Sea is characterized by a semiarid climate and peculiar soil formation due to its transitional location between warmer and wetter Maritime Antarctica (MA) and drier colder Continental Antarctica (CA). We investigated the main factors and processes involved in soil genesis at Cape Lamb on Vega Island. Thirty pedons were sampled, described and analyzed for morphological, physical, geochemical and mineralogical properties. Twenty-two pedons were classified as Gelisols/Cryosols. Three soil groups were identified: (1) mixed substrates soils (2), acid sulfate soils and (3) basaltic soils. Acid sulfate soils showed the greatest degree of weathering with pronounced acidity due to sulfurization. Basaltic soils were the least developed and presented shallow pedons of skeletic character and high alkalinity. Parent material was the main factor in the differentiation of the studied soils. Climate and landforms were also important. Desert pavement, salinization and ahumic features induced by the semiarid climate, oppose acidification and cryoturbation, characterizing the transitional location of Vega Island. Patterned ground dominates on periglacial highlands, while desert pavements are more common on paraglacial surfaces. Despite the semiarid climate, pedogenesis is active in the studied soils, with clay minerals, sulfate minerals and pedogenic Fe-oxides formation.
英文关键词	Antarctica Cryosol Sulfate minerals Salinization Fe-oxides
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000590747200007
WOS关键词	JAMES-ROSS-ISLAND ; SOUTH-SHETLAND ISLANDS ; KING-GEORGE ISLAND ; MARITIME ANTARCTICA ; ORNITHOGENIC SOILS ; WRIGHT VALLEY ; WEDDELL SEA ; CAPE LAMB ; HOPE BAY ; LANDSCAPE
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328004
作者单位	[Siqueira, Rafael G.; Schaefer, Carlos Ernesto G. R.; Fernandes Filho, Elpidio, I; Francelino, Marcio R.; de Souza, Jose Joao L. L.] Univ Fed Vicosa, Dept Solos, Av PH Rolfs S-N, Vicosa, MG, Brazil; [Correa, Guilherme R.] Univ Fed Uberlandia, Inst Geog, Av Joao Naves Avila 2121, Uberlandia, MG, Brazil; [Rocha, Pablo de A.] Univ Fed Espirito Santo, Dept Geog, Av Fernando Ferrari 514, Vitoria, ES, Brazil
推荐引用方式 GB/T 7714	Siqueira, Rafael G.,Schaefer, Carlos Ernesto G. R.,Fernandes Filho, Elpidio, I,et al. Weathering and pedogenesis of sediments and basaltic rocks on Vega Island, Antarctic Peninsula[J],2021,382.
APA	Siqueira, Rafael G..,Schaefer, Carlos Ernesto G. R..,Fernandes Filho, Elpidio, I.,Correa, Guilherme R..,Francelino, Marcio R..,...&Rocha, Pablo de A..(2021).Weathering and pedogenesis of sediments and basaltic rocks on Vega Island, Antarctic Peninsula.GEODERMA,382.
MLA	Siqueira, Rafael G.,et al."Weathering and pedogenesis of sediments and basaltic rocks on Vega Island, Antarctic Peninsula".GEODERMA 382(2021).