Results 61 to 70 of about 3,184,401 (234)

Geochronology and evolution of quaternary volcanism at the Keli Highland, Greater Caucasus

open access: yesGeochemistry International, 2011
The paper reports newly obtained stratigraphic, petrographic, and isotope-geochronological data on modern moderately acid lavas from the Keli Highland at the Greater Caucasus and presents a geological map of the territory, in which 35 volcanoes active in Late Quaternary time were documented by the authors. The total duration of volcanic activity at the
Lebedev, V. A.   +3 more
openaire   +2 more sources

Perspectives on the Future of the Caucasus after the Second Chechnya Conflict. Papers from a Brainstorming Conference held at CEPS 27-28 January 2000. CEPS Working Document No. 148, July 2000 [PDF]

open access: yes, 2000
The problems surrounding the Chechen conflict are indeed many and difficult to tackle. This paper aims at unveiling some of the mysteries covering the issue of so-called “Islamic fundamentalism” in Chechnya.
Chirikba, Viacheslav   +9 more
core  

Testing the morphology‐ and intuition‐based taxonomic hypotheses using integrative approach: unexpected discovery of triplet of sibling species within a widespread Eurasian butterfly, Hyponephele lycaon

open access: yesCladistics, EarlyView.
Abstract In well‐studied groups of organisms, the taxonomic landscape can be very complex, with several alternative classifications describing diversity within the same set of populations. For example, three hypotheses have previously been proposed to describe the taxonomy of the common and widespread Eurasian Dusky Meadow Brown butterfly, Hyponephele ...
Elena A. Pazhenkova   +1 more
wiley   +1 more source

Impact of global change on the distribution of mountain mammals and birds

open access: yesConservation Biology, EarlyView.
Abstract Climate change and land‐use changes are key drivers of global biodiversity loss. Many species are shifting to higher elevations or latitudes in response to global warming, often encountering unfavorable land‐use conditions during the shift. These changes can lead to reduced range size and increased extinction risks, particularly for mountain ...
Chiara Dragonetti   +5 more
wiley   +1 more source

Interference Folding of the Southern Slope of the Greater Caucasus

open access: yesГеология и геофизика Юга России, 2019
В результате проведенных многолетних региональных геолого-структурных исследований в пределах южного склона Большого Кавказа установлено развитие интерференционной складчатости. Она слагает краевую южную часть отдельных участков Северо-Западного, Центрального и Юго-Восточного Кавказа. Полоса развития интерференционной складчатости, длиной более 85 км и
openaire   +2 more sources

Protected areas on international borders show uneven conservation outcomes

open access: yesConservation Biology, EarlyView.
Abstract Border protected areas (BPAs) are national protected areas that are immediately adjacent to a country's border or span two or more countries; they are characterized by distinctive opportunities and pressures. They play a critical role in protecting carbon‐rich ecosystems, conserving endangered biodiversity, reducing cross‐border environmental ...
Rachakonda Sreekar   +10 more
wiley   +1 more source

Seismic-geological analysis of the South Caspian mega depression evolutionary development to identify hydrocarbon accumulations

open access: yesВісник Київського національного університету імені Тараса Шевченка. Серія Геологія
Background. The South Caspian Mega Depression (SCMD) is a territory limited in the west by the Dziruly massif, in the east by the Western Turkmenian Depression (inclusive), in the north by the mountain structures of the Greater Caucasus, Greater Balkhan
Elena Pogorelova   +3 more
doaj   +1 more source

Forest Transformation in the Southeastern Part of the Greater Caucasus

open access: yesBulletin of Science and Practice, 2020
Three experimental plots of beech–hornbeam–oak mixed forests of the southeastern part of the Greater Caucasus were examined. Biometric and phytocenological observations were carried out, species composition and fullness of forests, growth, diameter and height of trees.
openaire   +1 more source

Typization of epithermal gold-silver systems of Greater Caucasus

open access: yesГеология и геофизика Юга России, 2023
На Большом Кавказе описаны различные месторождения и рудопроявления золотого оруденения, в том числе и эпитермального. Однако типизация золото-серебряного эпитермального оруденения с использованием физико-химических условий их формирования на современном уровне не проведена.
openaire   +1 more source

Geolocation reveals wintering sites of near‐extinct Caucasian breeding sea duck

open access: yesIbis, EarlyView.
We obtained 14 sets of full annual cycle geolocator tracks from 13 individual nesting female Velvet Scoter Melanitta fusca from the relict Caucasian population at their last remaining breeding site, Lake Tabatskuri, Georgia. Results showed that females wintered at widespread discrete localities in Ukraine, around the coasts of the Crimean Peninsula and
Nika Paposhvili   +3 more
wiley   +1 more source

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