Dating late Holocene lava flows in Pico de Orizaba (Mexico) by means of in situ-produced cosmogenic 36Cl, lichenometry and dendrochronology [PDF]
International audienceThe knowledge of the eruptive history of volcanic centers allows for improving the evaluation of the related risks and hazards in populated areas, but substantially depends on the ability of dating the lava flows.
Schimmelpfennig, Irene +21 more
core +1 more source
The geomorphological role of snow since the Little Ice Age in the Sierra de Ancares (NW Spain)
On the Pico Cuiña cirque, Sierra de Ancares (León, Spain), the seasonal snow cover undergoes both slow and rapid mass displacements. Push associated with moving snow is responsible for an intense geomorphological activity, which is characterised by the ...
P. Carrera-Gómez, M. Valcárcel
doaj +1 more source
Photosynthetic rate and thallus size are not related in alpine yellow-green Rhizocarpon crustose lichens: Implications for lichenometry and growth [PDF]
Lichenometry, first proposed at the beginning of the XXth century, is a technique that uses growth rates of saxicolous crustose lichens to date exposed surfaces over an age range of 500 years from present.
Green, Thomas George Allan +3 more
core +1 more source
Holocene history of the Ullukam Glacier
Using instrumental archives, aerial photographs, satellite images, old maps, descriptions of early explorers and old photographs we identified and mapped nine front positions of the Ullukam Glacier (SW slope of Elbrus) for the period from the end of XIX ...
O. N. Solomina +4 more
doaj +1 more source
Unexpected Fine-Scale Population Structure in a Broadcast-Spawning Antarctic Marine Mollusc [PDF]
Several recent empirical studies have challenged the prevailing dogma that broadcast-spawning species exhibit little or no population genetic structure by documenting genetic discontinuities associated with large-scale oceanographic features.
Peck, Lloyd S. +15 more
core +1 more source
ROCK GLACIERS IN THE KOLYMA HIGHLAND
Based on remote mapping and field studies inGrand Rapids, Tumansky,Hasynsky,Del-Urechen Ridges as well as Dukchinsky and Kilgansky Mountain Massifs there were identified about 1160 landforms which morphologically are similar to the rock glaciers or they ...
A. A. Galanin
doaj +1 more source
Lichenometry as a method and its relevance [PDF]
Lichenometry is a constantly developing method (or set of methods) of relative and absolute dating of geological and anthropogenic formations, based on analysis of crustose lichens. It operates with an assumption that the larger the thallus is, the older
Pelant, Filip
core
The aim of this article is to show the results of the lichenometrical and Schmidt hammer measurements performed in 2015 during the AMADEE-15 Mars Mission Simulation in the Ötztal Alps in order to test the capabilities of analogue astronauts and collect ...
Czempiński Jan, Dąbski Maciej
doaj +1 more source
Establishing a multi-proxy approach to alpine blockfield evolution in south-central Norway
Blockfields in high latitude mountain areas are a wide spread proxy for glaciation history. Their origin is debated since decades, especially in south-central Norway, where glaciation had a major global climate implication.
Philipp Marr, Jörg Löffler
doaj +1 more source
Unravelling the evolution of the Frébouge polygenetic cone in Val Ferret (Mont Blanc Massif)
Proglacial settings in the Alps are typically polygenetic, often characterized by a complex and discontinuous interplay between glacial, fluvial and gravitational processes. These processes yield high volumes of sediments, which usually exceed their transportation capacity.
Catharina Dieleman +6 more
wiley +1 more source

