Results 41 to 50 of about 22,724 (303)

Depositional characteristics and evolution of Miocene deep-water channel systems in block A of Lower Congo-Congo Fan Basin, West Africa

Shiyou shiyan dizhi, 2021
Researches on the depositional characteristics, evolution and constraining factors of deep-water channel systems are the key factors to reveal the "source-sink" process at continental margin and make big breakthroughs in deep-water hydrocarbon ...
Hua CHEN, Changsong LIN, Zhongmin ZHANG, Demin ZHANG, Yixuan ZHU, Gaokui WU, Ming LI, Hai XU, Rongtao GUO   +8 more
doaj   +1 more source

Mangarara Formation: exhumed remnants of a middle Miocene, temperate carbonate, submarine channel-fan system on the eastern margin of Taranaki Basin, New Zealand

, 2009
The middle Miocene Mangarara Formation is a thin (1–60 m), laterally discontinuous unit of moderately to highly calcareous (40–90%) facies of sandy to pure limestone, bioclastic sandstone, and conglomerate that crops out in a few valleys in North ...
Peter J.J. Kamp, Nelson, Campbell S., Ángel Puga‐Bernabéu, Adam J. Vonk, Campbell S. Nelson, Vonk, Adam J., Kamp, Peter J.J., Puga-Bernabéu, Ángel   +7 more
core   +1 more source

Taxonomic reassessment of fossil Sequoia and Protosequoia from the Upper Miocene of Central Honshu, Japan, with implications for leaf morphological variation in extant S. sempervirens

American Journal of Botany, EarlyView.
Abstract Premise Since its emergence in the Mesozoic, Sequoia (Cupressaceae) has been considered to possess conserved leaf morphology. However, recent studies have shown that the leaves of extant S. sempervirens become smaller, with a scale form, with increasing tree height.
Shun Ikeda, Arata Momohara
wiley   +1 more source

Magnetic fabric of the late Miocene extrusive rocks of the Combia Volcanic Province: Tectonic implications for the northern Andes

Earth and Planetary Physics
The accretion of the Panama–Chocó Block to the South American Plate partially drove the geological setting of the northern Andes. This event occurred in different collisional stages that are recorded in Oligocene–middle Miocene deformed rocks of the ...
Victor A. Piedrahita, Martin Chadima, Jackeline Ramírez, Alejandra Tabares, Maria I. Marín-Cerón, JinHua Li   +5 more
doaj   +1 more source

REEFS AND BIOACCUMULATIONS IN THE MIOCENE DEPOSITS OF THE NORTH CROATIAN BASIN – AMAZING DIVERSITY YET TO BE DESCRIBED

Rudarsko-geološko-naftni Zbornik, 2016
During the early stages of the Middle Miocene transgression marine biota invaded the newly formed Paratethys Sea. Reefs and reef-like structures particularly flourished with life, supported by the favourable climate conditions.
Jasenka Sremac, Marija Bošnjak Makovec, Davor Vrsaljko, Bojan Karaica, Kristina Tripalo, Karmen Fio Firi, Ana Majstorović Bušić, Tihomir Marjanac   +7 more
doaj   +1 more source

Late Cretaceous through Cenozoic Paleoenvironmental History of the Bagua Basin, Peru: Paleoelevation Comparisons with the Central Andean Plateau

Geosciences, 2022
Located in northern Peru, at the lowest segment of the Central Andes, the Bagua Basin contains a Campanian to Pleistocene sedimentary record that archives the local paleoenvironmental and tectonic history.
Federico Moreno, Carmala N. Garzione, Sarah W. M. George, Lauren Williams, Fabiana Richter, Alice Bandeian   +5 more
doaj   +1 more source

High-precision zircon U-Pb geochronology of astronomically dated volcanic ash beds from the Mediterranean Miocene

, 2014
Several orbitally tuned Miocene sedimentary sequences around the Mediterranean contain abundant intercalated volcanic ash beds. These sequences provide the rare opportunity to directly compare radioisotopic dating methods with independent and accurate ...
Wotzlaw, Jörn Frederik, NWO-VENI: Middle Miocene global cooling: climate change through gateway closure, Hilgen, Frederik J., Hüsing, Silja K., Wotzlaw, Joern Frederik, Schaltegger, Urs, Stratigraphy and paleontology, Paleomagnetism   +7 more
core   +1 more source

The relationship between form and function of the carnivore mandible

The Anatomical Record, EarlyView.
Abstract Dietary morphology diversified extensively in Carnivoraformes (living Carnivora and their stem relatives) during the Cenozoic (the last 66 million years) as they evolved to capture, handle, and process new animal and plant diets. We used 3D geometric morphometrics, mechanical advantage, and finite element analysis to test the evolutionary ...
Charles J. Salcido, P. David Polly
wiley   +1 more source

Tertiary conglomerates of the North border of Sierra de Cameros

Cuadernos de Investigación Geográfica, 2013
The present paper is a study of the age of the siliceous conglomerates not consolidates situated in the Northern Sierra de Cameros. The age of these rocks are: Upper Oligocene (Chattian or older) the oldest; middle Miocene (Vindobonian) the intermediate;
Félix Pérez Lorente, Sara Pavía Santamaría, Carlos Pereda Olasolo   +2 more
doaj   +1 more source

Early Pliocene Varanus (Squamata, Varanidae) remains from Megalo Emvolon, Thessaloniki, Greece

The Anatomical Record, EarlyView.
The article describes new cranial and postcranial varanid material from Megalo Emvolon Lower Pliocene vertebrate fossil site near Thessaloniki. The fossils, likely representing a single individual, are referred to Varanus cf. marathonensis. Abstract This study describes new fossil varanid material from a recently discovered fossil spot (MVL site) at ...
Chara Drakopoulou, Georgios L. Georgalis, Georgios Lazaridis, Dimitris S. Kostopoulos   +3 more
wiley   +1 more source