Geochemistry of a late quaternary loess-paleosol sequence in central Argentina
Geoquímica de una secuencia de loess-paleosuelos del cuaternario tardío en el centro de Argentina
| dc.creator | Rouzaut, Sabrina | |
| dc.creator | Campodonico, Verena Agustina | |
| dc.creator | Pasquini, Andrea Inés | |
| dc.date | 2019-06 | |
| dc.date | 2019 | |
| dc.date | 2019-07-02T14:28:18Z | |
| dc.date.accessioned | 2019-11-21T15:40:54Z | |
| dc.date.available | 2019-11-21T15:40:54Z | |
| dc.identifier | http://sedici.unlp.edu.ar/handle/10915/77504 | |
| dc.identifier | isbn:978-987-96296-7-3 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/3053696 | |
| dc.description | A loess-paleosol sequence in central Argentina was geochemically analyzed. Corralito I sequence (32°00‘7” S, 64°11’08” W, 469 m a.s.l) is composed by three paleosols and a buried soil separated by loess layers. Weathering indices (CIA, CIW, LWI), elemental ratios (ΣBases/Al<SUB>2</SUB>O<SUB>3</SUB>, Rb/Sr, CaO/TiO<SUB>2</SUB>, Na<SUB>2</SUB>O/TiO<SUB>2</SUB>), and mean annual paleo-precipitation indices (MAPPs) were calculated in order to obtain a weathering insight and to probe geochemical paleoclimatic proxies. The results indicate an incipient weathering degree throughout the sequence, without significant geochemical differences between paleosols and the loess mantles. Moreover, geochemical paleoclimatic proxies (MAPPs) do not detect a significant paleoprecipitation variability for the time period recorded in the studied loess-paleosol sequence. | |
| dc.description | Centro de Investigaciones Geológicas | |
| dc.format | application/pdf | |
| dc.format | 158-161 | |
| dc.language | es | |
| dc.relation | V Reunión Argentina de Geoquímica de la Superficie (RAGSU) (La Plata, 12 al 14 de junio de 2019) | |
| dc.relation | http://sedici.unlp.edu.ar/handle/10915/77067 | |
| dc.rights | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.rights | Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) | |
| dc.subject | Geología | |
| dc.title | Geochemistry of a late quaternary loess-paleosol sequence in central Argentina | |
| dc.title | Geoquímica de una secuencia de loess-paleosuelos del cuaternario tardío en el centro de Argentina | |
| dc.type | Objeto de conferencia | |
| dc.type | Objeto de conferencia |