Holocene (~4.5-1.7 cal. kyr BP) paleoenvironmental conditions in central Argentina inferred from entire-shell and intra-shell stable isotope composition of terrestrial gastropods
| dc.contributor.author | Yanes, Yurena | |
| dc.contributor.author | Cattáneo, Roxana | |
| dc.contributor.author | Izeta, Andrés D. | |
| dc.contributor.author | Gordillo, Sandra | |
| dc.contributor.author | Costa, Thiago | |
| dc.creator | IDACOR | |
| dc.date | 2014 | |
| dc.date.accessioned | 2021-08-27T14:54:55Z | |
| dc.date.available | 2021-08-27T14:54:55Z | |
| dc.date.issued | 2014 | |
| dc.description.abstract | The isotopic fingerprint of terrestrial gastropods has been increasingly used as a credible natural paleoenvironmental archive. Most published work has used this proxy at tropical and temperate latitudes of the Northern Hemisphere, and focused on entire-shell analysis. The present study provides entire-shell and intra-shell isotopic profiles to infer average and seasonal late Holocene environmental conditions in central Argentina (30°S). Shells of Plagiodontes daedaleus (Gastropoda: Odontostomidae) were retrieved from the Alero Deodoro Roca–Sector B site, one of the few archaeological sites in central Argentina rich in shells collected by pre-Hispanic hunter-gatherer groups. Ancient entire shells exhibited values that were ~2.5‰ higher in δ13C and ~1.8‰ higher in δ18O than modern individuals, pointing to higher abundance of C4 plants and overall drier conditions (lower relative humidity and/or higher rain δ18O) during 4.5–1.7 cal. kyr BP than today, in agreement with published regional proxies. Intra-shell isotopic profiles suggest that modern and fossil specimens deposited their shells throughout two-to-three summer/winter cycles. Intra-shell δ18O values varied ~5‰, matching with the seasonal variation of rain δ18O values. The extent of seasonality was similar during 4.5–1.7 cal. kyr BP and today. Intra-shell δ13C values varied ~2–3‰ and did not portray distinct seasonal cycles, depicting minimal seasonal variations in the snail diet. This work illustrates that South American terrestrial gastropods have great potential for paleoenvironmental studies. | en |
| dc.format | application/pdf | |
| dc.format.extent | 1193-1205 | |
| dc.identifier.citation | Yanes, Y., Izeta, A. D., Cattáneo, R., Costa, T., & Gordillo, S. (2014). Holocene (~4.5–1.7 cal. Kyr BP) paleoenvironmental conditions in central Argentina inferred from entire-shell and intra-shell stable isotope composition of terrestrial gastropods. The Holocene, 24(10), 1193-1205. https://doi.org/10.1177/0959683614540959 | es |
| dc.identifier.citation | Yanes, Y., Izeta, A. D., Cattáneo, R., Costa, T., & Gordillo, S. (2014). Holocene (~4.5–1.7 cal. Kyr BP) paleoenvironmental conditions in central Argentina inferred from entire-shell and intra-shell stable isotope composition of terrestrial gastropods. The Holocene, 24(10), 1193-1205. https://doi.org/10.1177/0959683614540959 | |
| dc.identifier.issn | urn:issn:1477-0911 | |
| dc.identifier.uri | https://suquia.ffyh.unc.edu.ar/handle/suquia/18006 | |
| dc.publisher | SAGE | |
| dc.publisher | Sage Publications LTD | |
| dc.relation.ispartof | The Holocene 24 (10) | |
| dc.rights.license | info:eu-repo/semantics/restrictedAccess | |
| dc.source.uri | https://doi.org/10.1177/0959683614540959 | |
| dc.subject | Argentina | es |
| dc.subject | Holocene | es |
| dc.subject | Ongamira | es |
| dc.subject | paleoenvironment | es |
| dc.subject | stable isotopes | es |
| dc.subject | terrestrial gastropods | es |
| dc.title | Holocene (~4.5-1.7 cal. kyr BP) paleoenvironmental conditions in central Argentina inferred from entire-shell and intra-shell stable isotope composition of terrestrial gastropods | es |
| dc.title | Holocene (~4.5-1.7 cal. kyr BP) paleoenvironmental conditions in central Argentina inferred from entire-shell and intra-shell stable isotope composition of terrestrial gastropods | |
| dc.type | info:ar-repo/semantics/artículo | |
| dc.type | info:eu-repo/semantics/publishedVersion |