Maria Julia Arrouy
My name is Maria Julia Arrouy and currently work at the Instituto de hidrologia de llanuras (IHLLA), CONICET, Argentina. My PhD focused on understanding the sediments and biological important events across the Ediacaran time. Using tools such as geochemistry and geobiology. I am trained as a sedimentologist, field geologist, geobiology and laboratory geology.
Phone: 02215890824
Address: 25 de mayo 1027
Phone: 02215890824
Address: 25 de mayo 1027
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reorganized into eight depositional sequences based on a detailed review of published sources and
new lithological observations. The main compositional attributes compiled from the studied units
were used to indicate changes in lithology regarding their origin. Epiclastic sections reveal supply
and sources changes through the succession. Basement detritus was dominant during the deposition
of the basal sequences turning drastically to a volcanic affinity dominance. The carbonate sections,
dominated by intra-basinal components, were deposited in periods of rare or restricted detrital
input. The older, described as a cap-dolostone, was related to bio-induced dolomite precipitation
under a deglacial to interglacial context. The younger, a carbonate ramp, reveals to have been built
by microbial activity adding high levels of oxygen to seawater correlated to a global oxygenation
event. Compositional changes recorded in the shallow marine deposits of Tandilia could have been
intricately linked to periods of tectonic and paleo-relief configurations, favoring the detrital supply
into the basin, followed by relevant episodic biogeochemical changes. This study shows that the
basinal-components progression was controlled by paleoclimate and paleoenvironments associated to
the extensive interval between the rupture of the Rodinia to Gondwana paleogeographical framework.
reorganized into eight depositional sequences based on a detailed review of published sources and
new lithological observations. The main compositional attributes compiled from the studied units
were used to indicate changes in lithology regarding their origin. Epiclastic sections reveal supply
and sources changes through the succession. Basement detritus was dominant during the deposition
of the basal sequences turning drastically to a volcanic affinity dominance. The carbonate sections,
dominated by intra-basinal components, were deposited in periods of rare or restricted detrital
input. The older, described as a cap-dolostone, was related to bio-induced dolomite precipitation
under a deglacial to interglacial context. The younger, a carbonate ramp, reveals to have been built
by microbial activity adding high levels of oxygen to seawater correlated to a global oxygenation
event. Compositional changes recorded in the shallow marine deposits of Tandilia could have been
intricately linked to periods of tectonic and paleo-relief configurations, favoring the detrital supply
into the basin, followed by relevant episodic biogeochemical changes. This study shows that the
basinal-components progression was controlled by paleoclimate and paleoenvironments associated to
the extensive interval between the rupture of the Rodinia to Gondwana paleogeographical framework.