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-Professor in Paleontology, Dept. Earth Sciences, University of Zaragoza (Spain).
-Corresponding member of the Royal Academy of Sciences, Spain.
-Chair of the International Subcommission on Paleogene Stratigraphy (ISPS).
-2017-2019: Adjunct of the Spanish National Research Agency (Agencia Estatal de Investigación, AEI)
-Board member of the Spanish Society of Paleontology (SEP)
.
RESEARCH:
I am interested in the application of benthic foraminifera (microfossils)
in understanding ocean and climate changes using marine sediments from
land-sections and deep-sea cores. The study of fossil shells of benthic
foraminifera provides paleontologists with a valuable record of the paleoenvironmental
changes that occurred at the seafloor millions of years ago. I am particularly
keen on the analysis of critical events along Earth´s history, such
as the impact of a meteorite at the Cretaceous/Tertiary boundary, which
led to the extinction of many species (including dinosaurs), or the effects
of the late Paleocene greenhouse world on the biota.
My main research
interests are:
* Micropaleontology.
Taxonomy, ecology, paleoecology and isotopic signal
of benthic foraminifera.
Check out a new, major review on Paleogene deep-sea foraminifera as tracers of global change Alegret et al. (2021) - see summary.
* Paleoenvironmental reconstructions.
* Analysis of critical events:
- The meteorite impact event of the Cretaceous/Paleogene (K/Pg; also
called KT) boundary (66 million years ago). See Henehan et al. 2019, PNAS & Hull et al. 2020 Science -see summary.New: Alegret et al. 2022
See also Alegret et al., PNAS (2012). And our review in Science (2010)
Podcasts (in Spanish): Cienciaes.com, Hablando con cientificos
- Paleogene hyperthermal events, including the extinction of deep-sea
benthic foraminifera at the Paleocene/Eocene boundary (55 million years
ago).
- Climate changes, cooling events associated to the early Oligocene
glaciation (34 million years ago).
- Cretaceous Ocean Anoxic Events.
* Since 2017, I am focused on exploring a new continent... Zealandia. Results of our grand adventure on the high seas of NW New Zealand, IODP Exp 371:
*Outreach and online teaching: Surviving Extinction Trailer
Surviving Extinction Game https://vft.asu.edu/survive/ Use Chrome or Firefox as your browser!
In Surviving Extinction you get to choose a modern day animal and then try to chart a path through time up to it from 350 million years ago to today. You take on the roles of the different animal groups in each of the unique environments along the way. The adventure steps through 15 different pre-historic time periods and uses re-created 360° environments from 350 million years ago to the present. It includes 10 real-world expedition sites to discover, hidden keys to find, challenges to solve, and deadly predators to avoid, all wrapped up in a choose your own adventure experience.
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-Catedrática de Universidad, Dpto. Ciencias de la Tierra, Universidad de Zaragoza.
-Académica Correspondiente Nacional, Real Academia de Ciencias Exactas, Físicas y Naturales.
-Presidenta de la Subcomisión Internacional de Estratigrafía del Paleógeno (ISPS).
-2017-2019: Adjunta de la Agencia Estatal de Investigación (AEI).
-Vocal de la Sociedad Española de Paleontología
(SEP).
INVESTIGACIÓN:
Estoy interesada en la aplicación de los foraminíferos bentónicos
(microfósiles) para comprender los cambios oceánicos y climáticos
a través del estudio de sedimentos marinos (de secciones continentales
y de sondeos océanicos). El estudio de las conchas fósiles
de foraminíferos bentónicos proporciona a los paleontólogos
un registro muy valioso sobre los cambios paleoambientales que ocurrieron
en el fondo marino hace millones de años. En particular, me interesa
el análisis de eventos críticos a lo largo de la historia
de la Tierra, como el impacto meteorítico del límite Cretácico/Terciario,
que provocó la extinción de numerosas especies incluyendo
al grupo de los dinosaurios, o los efectos del "mundo invernadero"
del Paleoceno terminal sobre la biota.
Mis principales intereses en investigación son:
* Micropaleontología.
Taxonomía, ecología, paleoecología
y señal isotópica de foraminíferos bentónicos.
Nuevo: Foraminíferos bentónicos como indicadores de cambio global durante el Paleógeno Alegret et al. (2021) ver resumen.
* Reconstrucciones paleoambientales.
* Análisis de eventos críticos:
Participantes en la Expedición IODP 371
*Divulgación y enseñanza virtual: Surviving Extinction Trailer
Juego Surviving Extinction https://vft.asu.edu/survive/ Usar Chrome o Firefox como navegador
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