干旱区生态环境知识资源中心(Arid): Climate change during the deposition of the Aptian Santana Formation (Araripe Basin, Brazil): Preliminary data based on wood signatures

Arid

DOI	10.1016/j.jsames.2021.103462
	Climate change during the deposition of the Aptian Santana Formation (Araripe Basin, Brazil): Preliminary data based on wood signatures
	Guerra-Sommer, Margot; Siegloch, Anelise Marta; Degani-Schmidt, Isabela; Scaramuzza dos Santos, Angela Cristine; Carvalho, Ismar de Souza; Ferreira Gomes de Andrade, Jose Artur; de Freitas, Francisco Idalecio
通讯作者	Guerra-Sommer, M (corresponding author), Univ Fed Rio Grande do Sul, Programa Posgrad Geociencias, IGEO, Av Bento Goncalves 9500, BR-91509900 Porto Alegre, RS, Brazil.
来源期刊	JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
ISSN	0895-9811
EISSN	1873-0647
出版年	2021
卷号	111
英文摘要	This paper presents preliminary results of paleoclimatic signatures of conifer woods during the deposition of the basal Crato and topmost Romualdo members of the Santana Formation within the Tropical Equatorial Hot Arid Belt (late Aptian, Araripe Basin, Brazil). Analysis was carried out using standard thin sections, and the anatomical details were studied in transmitted light. The wood growth pattern from the lowermost laminated lacustrine carbonate level of the Crato Member was characterized by the absence of true growth rings and the common presence of wood growth interruptions, and could be linked to a tropical, equable but erratically humid environment. In an interlayered fine-to-coarse sandstone level attributed to a fluvio-deltaic interval, the wood growth pattern was homogeneous, lacking true growth rings, with weakly delineated growth interruptions over long radial distances. In this level the growth pattern could be related with a transition to a more equable tropical climate during a relatively humid period. In contrast, the wood pattern from the carbonate succession of the uppermost Romualdo Member, interpreted as a lagoon area with marine influence, showed true growth rings with abrupt ring boundaries and rings of variable width, also including frequent growth interruptions. This pattern could be linked to a monsoonal-like climate, subjected to distinct cyclical conditions and periodical droughts during the growing season.
英文关键词	Wood growth pattern Tropical equatorial hot arid belt Araucarian woods Tropical equable climate Monsoonal climate
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000702824600001
WOS关键词	GROWTH RINGS ; TREE-RINGS ; NORTHEAST BRAZIL ; IDENTIFICATION ; PRESERVATION ; FEATURES ; ECOLOGY ; PLANTS ; GENUS
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364033
作者单位	[Guerra-Sommer, Margot; Siegloch, Anelise Marta; Scaramuzza dos Santos, Angela Cristine] Univ Fed Rio Grande do Sul, Programa Posgrad Geociencias, IGEO, Av Bento Goncalves 9500, BR-91509900 Porto Alegre, RS, Brazil; [Degani-Schmidt, Isabela; Carvalho, Ismar de Souza] Univ Fed Rio de Janeiro, CCMN IGEO, Programa Posgrad Geol, Av Athos Silveira Ramos 274,Bloco J1, BR-21941916 Rio De Janeiro, RJ, Brazil; [Carvalho, Ismar de Souza] Univ Coimbra, Ctr Geociencias, Rua Silvio Lima, P-3030790 Coimbra, Portugal; [Ferreira Gomes de Andrade, Jose Artur] Agencia Nacl Mineracao, Praca Se 105, BR-63100440 Crato, CE, Brazil; [de Freitas, Francisco Idalecio] Geopk Araripe, Rua Carolino Sucupira S-N, BR-63100490 Crato, CE, Brazil
推荐引用方式 GB/T 7714	Guerra-Sommer, Margot,Siegloch, Anelise Marta,Degani-Schmidt, Isabela,et al. Climate change during the deposition of the Aptian Santana Formation (Araripe Basin, Brazil): Preliminary data based on wood signatures[J],2021,111.
APA	Guerra-Sommer, Margot.,Siegloch, Anelise Marta.,Degani-Schmidt, Isabela.,Scaramuzza dos Santos, Angela Cristine.,Carvalho, Ismar de Souza.,...&de Freitas, Francisco Idalecio.(2021).Climate change during the deposition of the Aptian Santana Formation (Araripe Basin, Brazil): Preliminary data based on wood signatures.JOURNAL OF SOUTH AMERICAN EARTH SCIENCES,111.
MLA	Guerra-Sommer, Margot,et al."Climate change during the deposition of the Aptian Santana Formation (Araripe Basin, Brazil): Preliminary data based on wood signatures".JOURNAL OF SOUTH AMERICAN EARTH SCIENCES 111(2021).