Results 131 to 140 of about 95,228 (333)
Ocorrência de Ironstones no Devoniano da Bacia do Paraná
Brazilian Journal of GeologyResumo: A origem de ironstones oolíticos, preservados no registro sedimentar, tem sido assunto de muitos debates nas últimas décadas. Tais depósitos formam importantes unidades no registro paleozoico e a determinação de seu significado sedimentológico e ...
Leonardo Costa de Oliveira +1 more
doaj +1 more source
Persistence and dynamic of forest snails in the Western Carpathians over the last 40 thousand years
Boreas, EarlyView.The glacial/interglacial cycles have shaped the landscape of temperate Europe for the past 2.5 million years, with open landscapes prevailing during the glacial and forested landscapes during the interglacial periods. However, the survival and recolonization strategies of temperate forest species during glacial phases remain poorly understood and hotly
Lucie Juřičková +5 more
wiley +1 more source
Boreas, EarlyView.This paper presents the results of a dual approach for assessing fossil benthic foraminiferal communities using both traditional morphology‐based analyses and sedimentary ancient DNA (sedaDNA) metabarcoding. The main objectives are to test the feasibility of sedaDNA analyses to assess foraminiferal biodiversity in temperate shelf sediments (Le Croisic,
Meryem Mojtahid +13 more
wiley +1 more source
Boreas, EarlyView.Clast‐fabric analysis is a widely used method for investigating depositional and deformation processes in glacial sediments. However, traditional field‐based approaches lack standardization, are time consuming and introduce sampling bias. This study aimed to develop a novel approach to automate clast‐fabric analysis using machine learning‐based image ...
Bennet Schuster +7 more
wiley +1 more source
STUDI SIKUENSTRATIGRAFI BERDASARKAN HASIL ANALISIS DATA PALINOLOGI PADA SUMUR Y, CEKUNGAN SUMATERA SELATAN [PDF]
, 2013 Palynology is a study of biostratigraphy for determining relative age and depositional environment based on the abundance of palynomorf. Palynology study develompent in Indonesia is still could be more increased along with more oil and gas exploration
Ramadhan, Rizki
core
Shoreline and deglaciation chronology in southeast Norway
Boreas, EarlyView.The postglacial relative sea level history is reconstructed in four areas of mid‐ and inner Oslofjorden in southeast Norway. The reconstructions are based on radiocarbon‐dated raised shoreline levels from 42 sites, mainly isolation basins, and limiting ages from four lakes above the marine limit.
Anders Romundset +6 more
wiley +1 more source
The Late Miocene Southern and Central Taranaki Inversion Phase (SCTIP) and related sequence stratigraphy and paleogeography [PDF]
, 2008 We present a new sequence stratigraphic scheme for Taranaki Basin that identifies four 3rd order duration (3 - 4 m.y.) sequences of Middle Miocene to Pleistocene age.
Kamp, Peter J.J., Vonk, Adam J.
core
Boreas, EarlyView.Comparing the morphological variation of North American collared lemming with climatic and geographic features, as well as genetic insight and the ice sheet extend, indicate the strong geographic structure underlying the morphological diversity of the genus, that might be linked with a local Pleistocene survival in the High Arctic.
Louis Arbez +5 more
wiley +1 more source
Early Holocene jökulhlaup chronology and deglaciation dynamics in central Iceland
Boreas, EarlyView.Glacial lake outburst floods (jökulhlaups) have occurred throughout the Quaternary in glaciated regions worldwide. Reconstructing flood chronology yields insight into deglaciation processes, environmental change and the role of extreme events in landscape evolution.
Greta H. Wells +4 more
wiley +1 more source