Results 131 to 140 of about 114,172 (349)

Late Cretaceous Tectono-Metamorphic Events in the Skyros Upper Metamorphic Unit (Olympus Mountain), Aegean Sea, Greece

open access: yesGeosciences
Late Cretaceous metamorphic events are known in Crete and the Cyclades from klippen above the External Hellenides. This work extends their occurrence to the North Aegean area within the tectonic units of the Internal Hellenides.
Dimitra Boundi   +3 more
doaj   +1 more source

Thermochronologic Constraints on the Extensional History of the Ibex Hills, Southeastern Black Mountains, Death Valley, California

open access: yesGeological Journal, EarlyView.
A. Modeled T‐t paths for samples in the northern Ibex Hills, showing steady cooling throughout much of the Cenozoic, until rapid Miocene cooling. B. Weighted mean paths for each sample in this study. Note that all show a rapid cooling event at or just after 10 Ma, which is interpreted to represent exhumation as a result of regional extenstion ...
Zachariah D. Fleming
wiley   +1 more source

MAMMALIAN EVOLUTION ACROSS THE CRETACEOUS/TERTIARY BOUNDARY: THE CONTRIBUTIONS OF SURVIVAL, DISPERSAL, AND EXTINCTION

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2015
Currently the most detailed fossil record of mammalian evolution across the Cretaceous/Tertiary (K/T) boundary is derived from the Western Interior of North America.
William A. Clemens
doaj  

Geochronology of the Whittlesey sedimentary succession, eastern England: The ‘Pompeii’ of the British late Middle Pleistocene to Holocene record

open access: yesJournal of Quaternary Science, EarlyView.
Abstract The sedimentary succession at Whittlesey preserves a unique British late Middle Pleistocene to Holocene record back to a time equivalent to at least marine oxygen isotope stage 8 (ca. 250 ka). This study builds on previously published sedimentology, geochronology and palaeoecology results to establish 20 sedimentary facies associations, with ...
H. E. Langford   +3 more
wiley   +1 more source

Comparing the Last Interglacial (MIS 5e) with the present interglacial period (MIS 1) using a multidimensional functional diversity analysis: The marine molluscs from Santa Maria Island (Azores Archipelago, central Atlantic) as a case study

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Marine fossil records hold outstanding importance for ecological, evolutionary and biogeographical studies. Santa Maria Island in the Azores Archipelago (central Atlantic) features a remarkable marine fossil record spanning from the Pliocene to recent times.
Sérgio P. Ávila   +16 more
wiley   +1 more source

Digitizing collections to unlock the full potential of palynology: A case study with the Smithsonian palynology collection

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Large palynological collections have been built over decades and contain vital information. However, they are often difficult to access and use effectively. What is the point of having such collections if they are not fully utilizable? To solve this problem, we digitized the Smithsonian palynological collection using both light and confocal microscopy.
Carlos Jaramillo   +37 more
wiley   +1 more source

Geochemistry of the Late Cretaceous Pandan Formation in Cebu Island, Central Philippines: Sediment contributions from the Australian plate margin during the Mesozoic [PDF]

open access: gold, 2020
Jerali Rodrigo   +6 more
openalex   +1 more source

Catalysts for change: Museum gardens in a planetary emergency

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Natural history museums are often seen as places with indoor galleries full of dry‐dusty specimens, usually of animals. But if they have gardens associated with them, museums can use living plants to create narratives that link outside spaces to inside galleries, bringing to life the challenges facing biodiversity.
Ed Baker   +4 more
wiley   +1 more source

Stratigraphy of El Chanate Group (Late Cretaceous) and its implications for the tectonic evolution of northwestern Sonora, Mexico

open access: yesRevista Mexicana de Ciencias Geológicas, 2018
The Late Cretaceous El Chanate Group is a clastic and volcanic sequence, ranging from 700 to more tan 2,800 m in thickness, deposited in a continental basin. It disconformably overlies the Lower Cretaceous Bisbee Group and underlies the Late Cretaceous (
César Jacques-Áyala
doaj  

Late Cretaceous nodosaurids (Ankylosauria: Ornithischia) from Mexico

open access: yesRevista Mexicana de Ciencias Geológicas, 2011
Restos de anquilosaurios nodosáuridos del Cretácico Superior de México son descritos aquí. Las muestras proceden de la Formación El Gallo de Baja California, de las formaciones Pen y Aguja del noroeste de Coahuila, y de la Formación Cerro del Pueblo, sureste de Coahuila, México.
Héctor E. Rivera-Sylva   +2 more
openaire   +2 more sources

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