Former postdoc @calvarez03.bsky.social discussed low-pressure wind-tunnel experiments at #NASA Ames showing that Mars’ large #ripples are aeolian drag ripples. Big implications for #paleoenvironments and sand #flux estimates on Mars (12/17 pm, EP33A-08). Published in @natcomms.nature.com this year
Our PhD student Ángela Ara is currently doing a #research stay at the University of Granada. She reconstructs #paleoenvironments using lake cores and she's working with:
#ostracods (microscopic crustaceans)
GDGTs (glycerol lipids, molecular fossils)
#Paleolimnology #UGR @amorenocab.bsky.social
Survey of Cove Cave (Eqik Qaarusussuaq). Samples were collected as follows: 1, KC19-9 and KC19-12. 2, KC19-14. 3, KC19-7. The position of the photo refers to Extended Data Fig. 1d.
Field location of Cove Cave (Eqik Qaarusussuaq) relative to other sites discussed in the text.
[6/6] Ces archives naturelles nous rappellent que chaque fraction de degré compte. Comprendre le passé du Groenland aide à anticiper la rapidité du réchauffement actuel et ses rétroactions globales. #geography #paleoenvironments #Greenland
Field location of Cove Cave (Eqik Qaarusussuaq) a, Steep-sided canyon with surface river flowing in base. b, Thin cryptobiotic soils on the valley floor in Grottedalen displaying patterned ground from the action of permafrost. c, Cave entrance with people for scale and helicopter in the valley. This valley is a small hanging tributary valley to (a). d, Vadose canyon (below figure in background) at the rear of the cave. Flowstone samples were collected from either side of the canyon. See Extended Data Fig. 2 for photo location. Credit: a,b,d, Robbie Shone; c, Andrew Sole.
[5/6] Les résultats rappellent que l’Arctique n’a jamais été un système stable. Même de faibles hausses de CO₂ peuvent y déclencher de grands bouleversements, amplifiant la fonte du pergélisol et la libération de carbone stocké dans les sols gelés. #geography #paleoenvironments #Greenland
[4/6] Le record climatique terrestre de la Cove Cave correspond remarquablement aux données marines, offrant une confirmation croisée inédite. C’est le premier enregistrement continental de cette région, longtemps inaccessible aux scientifiques. #geography #paleoenvironments #Greenland
[2/6] Les analyses montrent que durant le Miocène supérieur les températures moyennes en Arctique étaient supérieures de 14°C à celles actuelles, avec des concentrations de CO₂ autour de 310 ppm proches des projections climatiques pour les décennies à venir. #geography #paleoenvironments #Greenland
#PhD position in #Alpine #Sedimentology!
@unibe.ch (Prof. F. Schlunegger) & @imperialcollegeldn.bsky.social (Prof. A. Whittaker) if offering a 4-year PhD position in the #SwissAlps deposits in reconstructing #paleoenvironments.
Apply by Nov 1, 2025.
#Job Alert!
UT Austin is opening applications for Assistant #Professor (tenure-track) or Associate Professor (tenured) in #Sedimentary #Geosciences
Apply here - apply.interfolio.com/173688 or send your inquiries to @rowanmartindale.bsky.social
#sedimentology, #stratigraphy, #paleoenvironments
🌍 How did #LatePleistocene caves shape #humanevolution in Southeast Africa?
ICArEHB seeks a PhD candidate for #FCTPhDFellowships to study caves and #paleoenvironments in the region, supervised by Frederico Tátá Regala.
🔗 www.icarehb.com/fct-phd-fell...
#PhDOpportunity #Archaeology
(12/12)To find out more abt Sofía & her awesome work in #foraminifera #paleoenvironments & #diversity, please follow her on twitter(@AlleBlack) or IG (sophiebm93) & if you have any leads on PhD opportunities in #micropaleontology let her/us know too!
#GeoLatinas @MicropalaeoSoc
