Submerged Paleolandscapes: Site GNL Quintero 1 (GNLQ1) and the First Evidences from the Pacific Coast of South America

Carbias, aDiego; Cartajena, Isabel; Simonetti, Renato; López, Patricio; Morales, Carla; Ortega, Cristina

doi:10.1007/978-1-4614-9635-9_8

Cited by 17 publications

(14 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Skeletal remains were exposed via careful excavation using in situ decapage techniques. The remains were recovered in blocks with their sedimentary matrix so that they could be micro-excavated in the laboratory, thereby minimizing any loss of contextual information and physical deterioration that may have occurred during underwater extraction (Carabias et al 2014).…”

Section: Methodsmentioning

confidence: 99%

“…The observed chronological gap between the sedimentary matrix and bone radiocarbon dates needs to be clarified in order to understand possible carbonate exchanges between bioapatites and the burial environment and/or disturbances of the sedimentary matrix. A preliminary attempt at calculating the relative sea level (RSL) for Quintero Bay based on Spada and Stocchi (2007) SELEN 3.2 program combined with a mean estimated uplift rate of 0.5 m/ka was developed and provided a reasonably accurate paleolandscape model (Carabias et al 2014). The simulation proved consistent with eustatic sea-level curves (Lambeck et al 2002).…”

Section: Geomorphological Contextmentioning

confidence: 99%

“…Largely undisturbed deposits on the seabed containing a stratigraphic context of continental faunal remains have been systematically studied by research methods and strategies common to submerged prehistoric archaeology (Carabias et al 2014;Cartajena et al 2011Cartajena et al , 2013López et al 2012).…”

Section: Introductionmentioning

confidence: 99%

“…On the basis of a preliminary paleolandscape model for Quintero, GNL Quintero 1 (GNLQ1) was affected by only one singular marine transgression post-glacial event, with the site last being subaerially exposed by 11,000 BP (Carabias et al 2014). Accordingly, the site's record includes the following data on:…”

Section: Introductionmentioning

confidence: 99%

“…The analyses conducted during this early stage relied on a limited sample recovered during the subsurface test excavation of the site and the discussion focused primarily on the taphonomic agents operating during the continental phase (Cartajena et al 2011(Cartajena et al , 2013López et al 2012). However, during the recent years, the adoption of a paleolandscape research strategy, which encompasses the comprehensive application of remote sensing technologies, geological interpretation of industrial land and offshore coring, paleoenvironmental reconstruction and extensive underwater archaeological excavations, has contributed to the formulation of new research-driven questions (Carabias et al 2014). In this wider context, gaining a better understanding of the taphonomic agents that might have operated during the marine phase, particularly a shallow water environment exposed to the action of waves, currents and tides, represents a prime objective.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Terrestrial and maritime taphonomy: differential effects on spatial distribution of a Late Pleistocene continental drowned faunal bone assemblage from the Pacific coast of Chile

López

Cartajena

Carabias³

et al. 2015

Archaeol Anthropol Sci

Self Cite

View full text Add to dashboard Cite

Site GNL Quintero 1 (GNLQ1), located on the central coast of Chile, is the only documented Late Pleistocene drowned terrestrial site along the Pacific Coast of South America. Faunal evidence at the site is varied, and so far, remains of the following taxa have been found: extinct Camelidae, Cervidae, Equidae, Mylodontidae, Xenarthra, but also Myocastoridae, Canidae and Octodontidae. Both geological and paleoenvironmental data indicate that GNLQ1 developed in a floodplain or low-energy environment during the Last Glacial Maximum (LGM). Prior to the post-glacial rising of the sea level, the site would have been located several kilometres inland as the paleoshoreline was farther out on the continental shelf. In accordance with this background, the present study addresses the analysis of the spatial distribution of the bone deposits of GNLQ1 by considering both scenarios, the terrestrial phase related to the formation and modification of the fossil assemblage prior to the transgression, and the marine phase, subsequent to inundation. Results indicate modifications related to low-energy flow environment and carnivore activity dominated during the terrestrial phase and the action of marine organisms during the marine phase. Other taphonomic modifications are not easily attributable to either one or the other environmental context.GNL Quintero S.A

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Geomorphological Contextmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Terrestrial and maritime taphonomy: differential effects on spatial distribution of a Late Pleistocene continental drowned faunal bone assemblage from the Pacific coast of Chile

López

Cartajena

Carabias³

et al. 2015

Archaeol Anthropol Sci

Self Cite

View full text Add to dashboard Cite

show abstract

Mineral species and formation processes: Raman spectroscopic and microscopic analysis of stains from a late pleistocene continental drowned faunal bone assemblage, Central Chile

et al. 2021

Self Cite

View full text Add to dashboard Cite

In this study we address the analysis of bone staining and its sedimentary deposits to obtain a better understanding of the taphonomic trajectories of faunal assemblages in dynamic site formation processes. The fossil remains belong to continental fauna recovered at GNL Quintero 1, a Late Pleistocene drowned terrestrial site located nearshore at Quintero bay in the central coast of Chile (32°S). By conducting Raman spectroscopic and microscopic analyses we aim to identify the mineral compounds of bone staining and their sedimentary matrix, perform a first geochemical characterization of the depositional environments and carry out paleoenvironmental inferences. Stains are present on most remains and recur in a variety of colors, indicating the presence of minerals, such as hematite, goethite, pyrolusite, pyrite or marcasite, mackinawite, and greigite.Mineral species identified are associated with oxic and anoxic environments, suggesting that the bones and sediments underwent both sulfuricization and sulfidization processes. Spectroscopic data obtained suggest that the trajectory of the remains was much more dynamic than previously assumed. These geochemical scenarios of alternating oxidation and reduction reflects the diverse environments involved during the terrestrial phase, the transitional phase of rising sea level, and subsequently the marine phase.

show abstract

Submerged Continental Shelf Prehistory

Flemming¹

2016

Encyclopedia of Earth Sciences Series

View full text Add to dashboard Cite

Submerged Paleolandscapes: Site GNL Quintero 1 (GNLQ1) and the First Evidences from the Pacific Coast of South America

Cited by 17 publications

References 43 publications

Terrestrial and maritime taphonomy: differential effects on spatial distribution of a Late Pleistocene continental drowned faunal bone assemblage from the Pacific coast of Chile

Terrestrial and maritime taphonomy: differential effects on spatial distribution of a Late Pleistocene continental drowned faunal bone assemblage from the Pacific coast of Chile

Mineral species and formation processes: Raman spectroscopic and microscopic analysis of stains from a late pleistocene continental drowned faunal bone assemblage, Central Chile

Submerged Continental Shelf Prehistory

Contact Info

Product

Resources

About