Results 121 to 130 of about 123,575 (347)

Sinningia pampeana sp. nov. (Gesneriaceae) from the Pampa's rocky outcrops in southern Brazil and Uruguay

Nordic Journal of Botany, EarlyView.
Sinningia pampeana is a new rupicolous species from the rocky outcrops of the Pampa biome in southern Brazil and Uruguay. Morphological analyses based on herbarium material, field observations, and detailed illustrations support its recognition as a distinct species from Sinningia sellovii.
Gabriel Emiliano Ferreira, Daniel Alves Spiazzi, Pedro Henrique Sonsim Barbieri, Alain Chautems, Andréa Onofre Araújo   +4 more
wiley   +1 more source

The Oripää granite, SW Finland: Characterization and significance in terms of Svecofennian crustal evolution [PDF]

Bulletin of the Geological Society of Finland, 2001
T. Rämö, M. Nironen
doaj   +1 more source

Origin of the granulite enclaves in Indo-Sinian peraluminous granites, South China and its implication for crustal anatexis

, 2012
Metasedimentary granulite enclaves hosted in the Indo-Sinian Darongshan-Shiwandashan granite belt from the southeastern Guangxi province, South China, experienced a three-stage metamorphic evolution: (1) the early prograde metamorphism in the stability ...
Qin, XF, Fan, WM, Zhao, Liang, Li, Hongxia, Li, CW, Qin, Xiaofeng, Guo, F, Guo, Feng, Fan, Weiming, Li, Chaowen, Li, HX, Zhao, L   +11 more
core  

Petrogenesis of Palaeocene granites, Island of Skye, N. W. Scotland [PDF]

, 1995
This thesis documents an investigation of selected intrusions of the Palaeocene granites on the Isle of Skye, and includes: petrography, mineral chemistry (include REE concentrations) fluid inclusions, whole rock major-, trace- and rare-earth-elements ...
Aboazoum, Ali Saleh Ali
core  

Eriope barrinhae (Lamiaceae, Hyptidinae), a new montane species from northern Minas Gerais, Brazil

Nordic Journal of Botany, EarlyView.
In northern Minas Gerais, in the Monte Azul region, the Pico da Formosa mountain remains poorly explored botanically despite recent discoveries of new taxa. During fieldwork at the summit of this mountain, we discovered a distinctive population of Eriope that differs from all known species by a unique combination of morphological characters.
Danilo Alvarenga Zavatin, Luísa Azevedo, Renato Ramos, Jefferson Prado, Arthur de Souza Soares   +4 more
wiley   +1 more source

Experimental Investigation of Moisture Movement During Freeze–Thaw Cycles and Its Effect on Physical Rock Weathering in Low‐Porosity Alpine Limestone

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT The progressive weakening of alpine rockwalls through subcritical cracking, driven by repeated low‐magnitude stress processes, plays a key role in alpine rock weathering. Laboratory studies using acoustic emission (AE) monitoring have shown that thermal stresses from freeze–thaw cycling induce crack propagation, with recent work highlighting ...
Andrew Mitchell, Oliver Sass
wiley   +1 more source

Spatial Variability of Permafrost and Active Layer Thickness in a Forested Hillslope of the Taiga Shield

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Under continued climate warming, understanding present‐day permafrost distribution and the controls on ground thaw are critical for predicting permafrost thaw trajectories and associated implications. This study presents a high‐resolution investigation of permafrost extent and active layer thickness (ALT) across a coniferous forested hillslope
Alana Muenchrath, Christopher Spence, Andrew Ireson   +2 more
wiley   +1 more source

An εHf and δ18O Isotopic Study of Zircon of the Mount Osceola and Conway Granites, White Mountain Batholith, New Hampshire: Deciphering the Petrogenesis of A-Type Granites

, 2021
A-type granites form in anorogenic settings and typically have high REE concentrations, K2O, Na2O, SiO2, FeOtotal, but low contents of Al2O3, MgO, CaO compared to other granite types.
Matos Strauss, Javier Fabian
core  

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

Journal of Field Robotics, EarlyView.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 more
wiley   +1 more source

The Oripää granite revisited: Elemental geochemistry, Nd isotopes, and implication to terrane boundary [PDF]

Bulletin of the Geological Society of Finland, 2011
M. Nironen, O.T. Rämö
doaj   +1 more source