Tomas Luppo | Universidad de Buenos Aires (original) (raw)
Related Authors
CSIC (Consejo Superior de Investigaciones Científicas-Spanish National Research Council)
Milà i Fontanals Institution - Spanish National Research Council 8CSIC)
Uploads
Papers by Tomas Luppo
This paper focuses on the late Holocene occupation of hunter-gatherers at the Marazzi 2 site loca... more This paper focuses on the late Holocene occupation of hunter-gatherers at the Marazzi 2 site located on the northwestern steppe of Tierra del Fuego, Chile. Our aim is to understand stratigraphy, formation processes, and pedogenesis with respect to human occupation over the last 3000 years. Based on archaeological excavations on a fluvial terrace of the Torcido River, we integrate soil micromorphology, mineralogy, geochemistry, magnetic susceptibility, and geomorphology, as well as the micro- and macrofrequency distributions of archaeological material. A micro-taphonomical perspective is also applied to anthropogenic components recorded in sedimentary thin sections. We discuss various events in the interplay between soil development and human occupation through time. Marazzi 2 was witness to aggradation and pedogenesis with an episode of surface stability coincident with a phase of more intense human occupation at about 860 BC. Taphonomic analysis suggests that there are multiple occ...
The Tithonian-Berriasian thick bituminous shale and marls of the Vaca Muerta Formation have becom... more The Tithonian-Berriasian thick bituminous shale and marls of the Vaca Muerta Formation have become in recent years a major objective of intense research for hydrocarbon exploration and production pourposes. This may represent one of the world largest unconventional hydrocarbons reservoirs. A paleomagnetic study was carried out on 193 m of drill cores from the lower and upper levels of this formation in order to determine the feasibility of an alternative orientation method of rock cores. One hundred and thirty two standard specimens from 31 samples of eight drill cores were submitted to detailed stepwise alternating field demagnetization revealing the presence of a very well defined and consistent characteristic remanent magnetization in most samples. This allowed the precise orientation of all recovered cores as well as determining the presence of intra-core relative rotations. Considering the lithological homogeneity of the Vaca Muerta Formation and the success of the paleomagneti...
This paper focuses on the late Holocene occupation of hunter-gatherers at the Marazzi 2 site loca... more This paper focuses on the late Holocene occupation of hunter-gatherers at the Marazzi 2 site located on the northwestern steppe of Tierra del Fuego, Chile. Our aim is to understand stratigraphy, formation processes, and pedogenesis with respect to human occupation over the last 3000 years. Based on archaeological excavations on a fluvial terrace of the Torcido River, we integrate soil micromorphology, mineralogy, geochemistry, magnetic susceptibility, and geomorphology, as well as the micro- and macrofrequency distributions of archaeological material. A micro-taphonomical perspective is also applied to anthropogenic components recorded in sedimentary thin sections. We discuss various events in the interplay between soil development and human occupation through time. Marazzi 2 was witness to aggradation and pedogenesis with an episode of surface stability coincident with a phase of more intense human occupation at about 860 BC. Taphonomic analysis suggests that there are multiple occ...
The Tithonian-Berriasian thick bituminous shale and marls of the Vaca Muerta Formation have becom... more The Tithonian-Berriasian thick bituminous shale and marls of the Vaca Muerta Formation have become in recent years a major objective of intense research for hydrocarbon exploration and production pourposes. This may represent one of the world largest unconventional hydrocarbons reservoirs. A paleomagnetic study was carried out on 193 m of drill cores from the lower and upper levels of this formation in order to determine the feasibility of an alternative orientation method of rock cores. One hundred and thirty two standard specimens from 31 samples of eight drill cores were submitted to detailed stepwise alternating field demagnetization revealing the presence of a very well defined and consistent characteristic remanent magnetization in most samples. This allowed the precise orientation of all recovered cores as well as determining the presence of intra-core relative rotations. Considering the lithological homogeneity of the Vaca Muerta Formation and the success of the paleomagneti...