Suche
Anzeige der Dokumente 341-350 von 380
Microbial biosignatures in ancient deep‐sea hydrothermal sulfides
(
- Geobiology
, 2022-12-16)
Deep‐sea hydrothermal systems provide ideal conditions for prebiotic reactions and ancient metabolic pathways and, therefore, might have played a pivotal role in the emergence of life. To understand this role better, it ...
Life at the continental–marine interface: palaeoenvironments and biota of the Alcobaça Formation (Late Jurassic, Central Portugal), with a formal definition of the unit appended
(
- Palaeobiodiversity and Palaeoenvironments
, 2021-09-13)
The Kimmeridgian Alcobaça Formation of the Lusitanian Basin forms a mixed carbonate–siliciclastic unit between basinal deposits of the Abadia Formation, and fluvial–terrestrial strata of the Lourinhã Formation. This study ...
The Mandalovoo–Gurvansayhan terranes in the southern Gobi of Mongolia: new insights from the Bayankhoshuu Ruins section
(
- Palaeobiodiversity and Palaeoenvironments
, 2021-02-17)
The Bayankhoshuu Ruins section in southern Mongolia is characterized by strongly thrusted and folded sequences. Overall, three sections ranging from Ordovician to Carboniferous rocks were studied. Facies analysis combined ...
Environmental matching reveals non-uniform range-shift patterns in benthic marine Crustacea
(
- Climatic Change
, 2021-10-30)
Empirical and theoretical studies suggest that marine species respond to ocean warming by shifting ranges poleward and/or into deeper depths. However, future distributional patterns of deep-sea organisms, which comprise ...
Late Pliocene to early Pleistocene climate dynamics in western North America based on a new pollen record from paleo-Lake Idaho
(
- Palaeobiodiversity and Palaeoenvironments
, 2021-01-07)
Marked by the expansion of ice sheets in the high latitudes, the intensification of Northern Hemisphere glaciation across the Plio/Pleistocene transition at ~ 2.7 Ma represents a critical interval of late Neogene climate ...
Evaluating sedimentary DNA for tracing changes in cyanobacteria dynamics from sediments spanning the last 350 years of Lake Tiefer See, NE Germany
(
- Journal of Paleolimnology
, 2021-06-29)
Since the beginning of the Anthropocene, lacustrine biodiversity has been influenced by climate change and human activities. These factors advance the spread of harmful cyanobacteria in lakes around the world, which affects ...
Warm winters challenge the cultivation of temperate species in South America—a spatial analysis of chill accumulation
(
- Climatic Change
, 2021-12-11)
Winter chill accumulation plays a crucial role in determining the moment of bud burst in temperate fruit and nut trees, and insufficient chill can greatly limit yield potentials. To assess future cultivation options for ...
A middle Eocene treefall pit and its filling: a microenvironmental study from the onset of a forest mire in the Geiseltal (Germany)
(
- Palaeobiodiversity and Palaeoenvironments
, 2021-08-07)
The treefall pit of a large tree at the base of the middle Eocene Mittelkohle has been studied in the former open-cast mine Neumark Nord of the Geiseltal Mining District. Above a light clastic soil, the sedimentation in ...
Current extinction rate in European freshwater gastropods greatly exceeds that of the late Cretaceous mass extinction
(
- Communications Earth & Environment
, 2021-05-21)
The Cretaceous–Paleogene mass extinction event 66 million years ago eradicated three quarters of marine and terrestrial species globally. However, previous studies based on vertebrates suggest that freshwater biota were ...
Youngest Cretaceous dinosaur tracksite from the Middle East (Maastrichtian, Farrokhi Formation, Central Iran)
(
- Palaeobiodiversity and Palaeoenvironments
, 2021-12-07)
A late early Maastrichtian dinosaur trampling site is reported from the Farrokhi Formation of the Khur area, Central Iran. The largely indeterminate footprints, some of which may represent undertracks, can be classified ...