Results 111 to 120 of about 75,496 (347)
Geologica Acta, 2018 The Ediacaran-Lower Ordovician successions exposed in the Eastern Pyrenees are updated and revised based on recent U-Pb zircon radiometric ages, intertonguing relationships of carbonate-dominated strata, and onlapping patterns marking the top of volcano ...
M. Padel +3 more
doaj +1 more source
Cambrian acyclic domains: counting $c$-singletons [PDF]
arXiv, 2018 We study the size of certain acyclic domains that arise from geometric and combinatorial constructions. These acyclic domains consist of all permutations visited by commuting equivalence classes of maximal reduced decompositions if we consider the symmetric group and, more generally, of all c-singletons of a Cambrian lattice associated to the weak ...
arxiv
Late Cambrian acritarchs from the Santa Rosita Formation: implications for the Cambrian-Ordovician boundary in the eastern Cordillera of northwest Argentina [PDF]
, 2003 Marine phytoplankton from the Late Cambrian are described for the first time in the Eastern Cordillera of northwest Argentina. The acritarch assemblage was recovered from an offshore lower mudstone unit towards the base of the Casa Colorada Member (Santa
Buatois, Luis Alberto +2 more
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Sortable elements and Cambrian lattices [PDF]
arXiv, 2005 We show that the Coxeter-sortable elements in a finite Coxeter group W are the minimal congruence-class representatives of a lattice congruence of the weak order on W. We identify this congruence as the Cambrian congruence on W, so that the Cambrian lattice is the weak order on Coxeter-sortable elements.
arxiv
Modelling enrolment in Cambrian trilobites [PDF]
Palaeontology, 2017 AbstractTrilobites were capable of enroling in different ways based on the flexible articulation of thoracic segments and associated interlocking devices; the type of enrolment (spiral or sphaeroidal) is thought to have largely depended on the coaptative devices that each trilobite used to enclose the body.
Jorge Esteve +3 more
openaire +5 more sources
British Educational Research Journal, EarlyView.Abstract With levels of mental health difficulties among young people rising and policymakers focusing on the state's role in promoting young people's wellbeing, educational institutions have become positioned on the front line as key sites to identify and implement wellbeing interventions.
Ceri Brown +3 more
wiley +1 more source
Rifting and arc-related early Paleozoic volcanism along the North Gondwana margin: geochemical and geological evidence from Sardinia (Italy) [PDF]
, 2012 Three series of volcanic rocks accumulated during the Cambrian to Silurian in the metasediment-dominated Variscan basement of Sardinia. They provide a record of the changing geodynamic setting of the North Gondwana margin between Upper Cambrian and ...
BUZZI L +3 more
core +1 more source
The education experiences of young people experiencing child criminal and sexual exploitation
British Educational Research Journal, EarlyView.Abstract School exclusion forms part of the processes that can increase young people's risk of offending and involvement in exploitation and harm. However, little is known about the education experiences of young people impacted by harm, such as child sexual and criminal exploitation.
Jenny Lloyd
wiley +1 more source
The COSC-2 drill core and its well-preserved lower Palaeozoic sedimentary succession – an unexpected treasure beneath the Caledonian nappes [PDF]
Estonian Journal of Earth SciencesThe Collisional Orogeny in the Scandinavian Caledonides (COSC) project focuses on processes related to the closure of the Iapetus Ocean, causing the OrdovicianâSilurian continentâcontinent collision between Baltica and Laurentia.
Oliver Lehnert +18 more
doaj +1 more source
Scotland : Hebridean Terrane [PDF]
, 2011 The Cambrian succession in the Hebridean Terrane extends for about 200 km from near Durness on the northern coast of the Scottish mainland SSW to Skye (Fig. 14). The classic account of the whole region is the memoir by Peach et al.
Molyneux, S.G., Rushton, A.W.A.
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