Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.palaeo.2021.110549 |
Controls of pedogenesis in a fluvial-eolian succession of Cenomanian age in northern Patagonia | |
Lizzoli, Sabrina; Raigemborn, M. Sol; Varela, Augusto N. | |
通讯作者 | Lizzoli, S (corresponding author), Ctr Invest Geol, CONICET UNLP, Diagonal 113 275 1900, La Plata, Argentina. |
来源期刊 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY |
ISSN | 0031-0182 |
EISSN | 1872-616X |
出版年 | 2021 |
卷号 | 577 |
英文摘要 | Although interactions between eolian and fluvial systems are well documented in both modern and ancient environments, there are few studies of such deposits that also address the paleosols that developed within them. The Cenomanian Candeleros and Huincul formations of the Neuqu ' en Basin, Northern Patagonia, Argentina, provides an excellent opportunity to do so. These formations preserve mixed fluvial-eolian and fluvial systems, respectively, with associated pedogenesis. We identify five lithofacies associations (fluvial channel deposits [FA1], deposits of unconfined fluvial flows [FA2], floodplain deposits [FA3], eolian-dune deposits [FA4], and wet interdune deposits [FA5]), and five pedotypes (calcic Protosols [P1], Vertisols [P2], vertic and gleyed Protosols [P3a and P3b, respectively], vertic Calcisols [P4], and argillic Protosols [P5]). The lower Candeleros Formation is characterized by eolian dune deposits with calcic Protosols and wet interdune deposits with Vertisols and vertic and gleyed Protosols. The middle part of the formation is dominated by deposits of unconfined fluvial flows with vertic Protosols and, in the upper part of the unit, there are channel deposits with vertic Calcisols. The Huincul Formation is characterized by fluvial deposits with argillic Protosols. Changes in paleosol development have been recorded throughout the two formations. Small-scale changes, recognized in the lower Candeleros Formation, comprise a chrono-toposequence, in which calcic Protosols, Vertisols, vertic and gleyed Protosols are genetically associated with FA4 and FA5. Calcic Protosols developed on the dunes and gleyed Protosols in the inner part of the interdunes subjected to temporal waterlogging. When the dunes were vegetated and pedogenesis promoted dune fixation, the rate of dune mobility was slow and the ancient soils developed into Vertisols. In turn, the absence of vegetation was linked to a relatively high rate of dune migration, the time of soil development was limited, and, as a result, vertic Protosols were preserved. The analysis of soil-forming factors as large-scale controlling factors showed that throughout the succession, variations on the type of paleosol and the sedimentary environment over time were controlled by changes in ancient climate. Mid-Cretaceous global climate reconstructions suggest that the paleosols developed in northern Patagonia were located near the limit between the Southern Mid-latitude Warm Humid Belt and the Southern Hot Arid Belt. Seasonally arid and semi-arid conditions prevailed in this area, although there was a temporal trend towards a temperate subhumid climate. |
英文关键词 | Candeleros Formation Huincul Formation Vertisols Chrono-toposequence Paleoclimate |
类型 | Article |
语种 | 英语 |
收录类别 | SCI-E |
WOS记录号 | WOS:000678383100020 |
WOS关键词 | SAND-SHEET PALEOENVIRONMENT ; NEUQUEN BASIN ARGENTINA ; CEDAR-MESA SANDSTONE ; STRATIGRAPHIC EVOLUTION ; MARILIA FORMATION ; SOIL DEVELOPMENT ; FLOW DEPOSITS ; BAURU GROUP ; PALEOSOLS ; CLASSIFICATION |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology |
WOS研究方向 | Physical Geography ; Geology ; Paleontology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/368497 |
作者单位 | [Lizzoli, Sabrina; Raigemborn, M. Sol] Ctr Invest Geol, CONICET UNLP, Diagonal 113 275 1900, La Plata, Argentina; [Raigemborn, M. Sol; Varela, Augusto N.] UNLP, Fac Ciencias Nat & Museo, Catedra Micromorfol Suelos, Calle 122 & 60 S-N 1900, La Plata, Argentina; [Varela, Augusto N.] Y TEC SA, Av Petr S-N 1923, Berisso, Argentina; [Varela, Augusto N.] Consejo Nacl Invest Cient & Tecn CONICET, Av Petr S-N 1923, Berisso, Argentina |
推荐引用方式 GB/T 7714 | Lizzoli, Sabrina,Raigemborn, M. Sol,Varela, Augusto N.. Controls of pedogenesis in a fluvial-eolian succession of Cenomanian age in northern Patagonia[J],2021,577. |
APA | Lizzoli, Sabrina,Raigemborn, M. Sol,&Varela, Augusto N..(2021).Controls of pedogenesis in a fluvial-eolian succession of Cenomanian age in northern Patagonia.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,577. |
MLA | Lizzoli, Sabrina,et al."Controls of pedogenesis in a fluvial-eolian succession of Cenomanian age in northern Patagonia".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 577(2021). |
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