Results 61 to 70 of about 116,218 (233)

Droughts and human impact in the ancient Uaymil region of the Maya lowlands inferred from a 2800‐year sedimentary archive at Lake Kaná, Mexico

Boreas, EarlyView.
The relationship between the climate and societal transformation in Maya lowlands has long been debated, particularly the role of drought in shaping the civilization trajectory during the Classic Period. A high‐resolution, multi‐proxy, geochemical record from Lake Kaná, located in the underexplored Uaymil region of the Yucatán Peninsula in Mexico ...
Haydar B. Martinez‐Dyrzo, Priyadarsi D. Roy, Benjamin Gwinneth, Irma G. Vargas‐Martinez, Alejandro A. Aragon‐Moreno, Roger Medina‐Gonzales   +5 more
wiley   +1 more source

Development of CCMb: A Low‐Mg Calcite Reference Material for In Situ Measurement of δ18O, δ13C and Selected Trace Elements

Geostandards and Geoanalytical Research, EarlyView.
Key Points Low‐Mg calcite RM developed for in situ microanalysis applications in palaeoclimatology (δ18O, δ13C; Mg, Sr m/m). New data for calcite CRM IAEA‐603 (δ18O, δ13C by SIMS and GS‐IRMS; Mg m/m). No detectable IMF effect of Mg on SIMS δ18O determinations for mass fractions < 3650 μg g‐1.
Andreas T. Hertwig, Maciej G. Śliwiński, Irene Cantarero, Richard A. Stern, Carles Fàbrega, Jakub T. Śliwiński, Thomas Ludwig, František Majs, William Nachlas, John H. Fournelle, Xavier Llovet, Rachelle B. Turnier, David Parcerisa, Anna Travé   +13 more
wiley   +1 more source

Reti Tecnologiche e Mapping Gis

GEOmedia, 2004
Una questione di metodo o di tecnologie?
Anna Maria Bruna, Gaspare Burgio
doaj   +2 more sources

Morfometria e controles litoestruturais da Bacia Hidrográfica do Rio Bastiões, Ceará

GeoTextos
A bacia hidrográfica constitui-se em uma unidade de planejamento e gestão eficaz para a compreensão de formas e processos de ordem físico-natural, socioeconômica e cultural.
Vanessa Martins Lopes, Osvaldo Girão
doaj   +1 more source

Relações pedomorfogeológicas e distribuição de pedoformas na estação ecológica de águas emendadas, Distrito Federal

Revista Brasileira de Ciência do Solo, 2012
O Distrito Federal (DF) apresenta um modelo de distribuição de solos na paisagem condicionado pela compartimentação geomorfológica e substrato geológico.
Marilusa Pinto Coelho Lacerda, Inara Oliveira Barbosa   +1 more
doaj   +1 more source

Whole genome sequencing of historical specimens from the world's largest fungal collection yields high‐quality assemblies

New Phytologist, EarlyView.
Summary High‐throughput molecular studies of museum specimens (museomics) have great potential in biodiversity research, but fungal historical collections have scarcely been examined, leading to no comprehensive methodological assessments. Here we present a whole genome sequencing (WGS) project conducted at the Fungarium of the Royal Botanic Gardens ...
Torda Varga, Roseina Woods, Frances Pitsillides, Rowena Hill, Alona Yu Biketova, Theo Llewellyn, Brandon J. P. Shaw, Emily Hodgson, Brigid Wong, Jasmine Le, Josepha Becker, Alexander J. Bradshaw, Seth L. E. Blake, Clementine Geeves, Quentin Levicky, Lottie Goodman, Ruben L. Mole, Sidney L. Reed, M. Carly Lin, Emily Read, Keenan Harris, Raquel Pino‐Bodas, László G. Nagy, Anna Bazzicalupo, Ester Gaya   +24 more
wiley   +1 more source

Reglamentacja podejmowania działalności geologicznej i górniczej w prawie czeskim

Prawne Problemy Górnictwa i Ochrony Środowiska
Celem niniejszego artykułu jest przedstawienie regulacji dotyczących reglamentowania podejmowania działalności geologicznej i górniczej w Republice Czeskiej.
Filip Nawrot
doaj   +1 more source

A Geologia, os geólogos e o manto da invisibilidade

Comunicação e Sociedade, 2012
O distanciamento entre a ciência e a sociedade tem vindo a preocupar os cientistas durante as últimas décadas. Neste trabalho apresentam-se alguns factores que podem, pelo menos em parte, justificar este afastamento, recorrendo ao exemplo da Geologia ...
José Brilha
doaj   +1 more source

Correlation of magnetic susceptibility with 18O data in magnetite- and ilmenite-type granites from Iberian massif [PDF]

, 2012
The relationship between oxygen isotopic values and magnetic susceptibility composition on 11 Variscan Portuguese granites has been investigated. Whole-rock oxygen-isotope (18O ) values for Vieira do Minho (VM), Vila Pouca de Aguiar (VPA), Chaves ...
Lopes, José Carrilho, Machado, Joana, Martins, Helena, Noronha, Fernando, Sant'Ovaia, Helena   +4 more
core  

Development of a geological model useful for the study of the natural hazards in urban environments. An example from the eastern sector of Rome (Italy) [PDF]

, 2015
Detailed knowledge of the subsoil setting is an extremely important issue for a correct risk reduction policy, especially when dealing with urban areas hosting cultural heritage, which enhance risk conditions even at low geo-hazard levels, as in the case
Esposito, Carlo, Luberti, GIAN MARCO, Prestininzi, Alberto   +2 more
core   +1 more source