Results 151 to 160 of about 13,254 (248)

Microbial mats in dinosaur ichnocoenoses

Sedimentology, EarlyView.
ABSTRACT Until now, the significance of microbial mats in preservation of dinosaur tracks and in reconstructing the palaeoenvironment in which dinosaurs roamed was rarely studied. Dinosaur tracks are commonly found close to ancient aquatic bodies where moist sediment had once allowed footstep registration.
Nora Noffke, Paul C. Murphey, Roger C. Buntin, Martin G. Lockley   +3 more
wiley   +1 more source

Early thinning, late persistence, diachronous boundaries, and a regional dichotomy in Mars' young sedimentary rocks. [PDF]

Commun Earth Environ
Turner ML, Khan SY, Lewis KW, Noblet A, Kite ES.   +4 more
europepmc   +1 more source

Microbial mats and thalassinid shrimp: Spatial and geochemical interactions in a modern intertidal environment

Sedimentology, EarlyView.
ABSTRACT This research examines the spatial and geochemical interactions between mat‐forming microorganisms and thalassinid shrimp in an intertidal flat situated on the shores of Willapa Bay, Washington, USA. The study serves as a contemporary analog for the relationships between mats and burrowing organisms in deep time.
Brette S. Harris, Sara K. Biddle, Maya T. LaGrange, Scott Melnyk, Cody N. Lazowski, Jenifer S. Spence, Daniel Alessi, Jeffrey Kavanaugh, Kurt O. Konhauser, Murray K. Gingras   +9 more
wiley   +1 more source

The contribution of sea-ice recrystallization to the Arctic snowpack. [PDF]

Nat Commun
Macfarlane AR, Mellat M, Dadic R, Meyer H, Werner M, Brunello CF, Jafari M, Wever N, Arndt S, Krampe D, Sturm M, Schneebeli M.   +11 more
europepmc   +1 more source

Microbially generated ferruginous crusts: A potential biosignature of continental input in coastal settings

Sedimentology, EarlyView.
ABSTRACT Thin ferruginous sandy crusts are common on top of sandstone beds in the Early Permian post‐glacial deposits of the Paraná Basin in southern Brazil. These crusts usually preserve wrinkle structures, suggesting that they might be a product of microbial mediation.
Patrícia Weschenfelder, Renata Guimarães Netto, Alisson Klayton Martins   +2 more
wiley   +1 more source

The billion-dollar case for sustaining palaeontology's digital databases. [PDF]

Nat Ecol Evol
Dowding EM, Dunne EM, Collins KS, Cryer K, De Baets K, Dimitrijević D, Edie SM, Finnegan S, Kiessling W, Lintulaakso K, Liow LH, Little H, Na L, Peters SE, Renaudie J, Saupe EE, Seuss B, Sessa JA, Smith JA, Uhen MD, Williams JW, Kocsis ÁT.   +21 more
europepmc   +1 more source

A review of the supercritical state of eruption‐fed volcanic density currents in subaerial and subaqueous settings

Sedimentology, EarlyView.
ABSTRACT Subaerial Pyroclastic Density Currents (PDCs) and Subaqueous Eruption‐Fed Density Currents (SEFDCs) produced during volcanic eruptions can present major hazards to surrounding communities and ecosystems. The bedforms deposited by these volcanic density currents can provide insights into the nature of transport and depositional processes, which
Shannon E. Frey, Martin Jutzeler, Rebecca J. Carey   +2 more
wiley   +1 more source

Reply to Bourguignon et al.: Convergence is a plausible hypothesis for Quina technology in East Asia. [PDF]

Proc Natl Acad Sci U S A
Ruan QJ, Li H, Marwick B, Peresani M, Moncel MH, Xiao PY, Monod H, Li B, Delpiano D.   +8 more
europepmc   +1 more source

Stratigraphy

, 1996
openaire   +1 more source

Formation process of the gravel‐dominated deposit from the 2011 Tohoku‐oki tsunami in Ofunato, northeastern Japan, inferred by integrating sedimentology and tsunami modelling

Sedimentology, EarlyView.
ABSTRACT Tsunami deposits serve as geological records of past events and are essential for understanding the occurrence and dynamics of tsunamis. However, conventional research has largely focused on sandy and boulder deposits, leaving gravel‐dominated tsunami deposits comparatively underexplored; furthermore, their characteristics and formation ...
Hidetoshi Masuda, Haruki Imura, Koki Nakata, Takashi Ishizawa, Daisuke Sugawara, Kazuhisa Goto   +5 more
wiley   +1 more source