Results 131 to 140 of about 80,006 (331)

Neoarchean Arc Magmatism and Crust Recycling in the Northern Marginal Zone of the Limpopo Complex, Zimbabwe: New Insights From Zircon U‐Pb‐Hf Isotopes of a Charnockite Suite

open access: yesGeological Journal, EarlyView.
Charnockites with 2691–2607 Ma magmatic ages from the NMZ show arc‐magmatic geochemical signatures. They correspond to the lower‐crustal equivalent of the Chilimanzi Suite Granite in the Zimbabwe Craton. Lu‐Hf isotopic data of magmatic zircons show negative εHf(t) values (−11.18 to −2.20) with TDMC ages of 3699–3158 Ma, suggesting their protolith ...
Toshiaki Tsunogae   +6 more
wiley   +1 more source

Stratigraphy and Palaeontology of Trilobites in Kuhbanan Formation in the Akbar-Abad Section (North of Kerman) [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2010
Cambrian sedimentary facies are exposed throughout north part of Kerman region. Trilobites’ faunas are the most common invertebrate fossils within the Cambrian strata. The section is made of 217 m of sandstone, shale, limestone and dolomite.
H. Ameri
doaj  

Oligodendrogenesis in Evolution, Development and Adulthood

open access: yesGlia, EarlyView.
Oligodendrocytes and myelin took shape in jawed vertebrates. During development, OPCs are originated from NSCs and then undergo differentiation into mature oligodendrocytes that supply myelin. OPCs persist in the adult CNS and continue to produce oligodendrocytes and myelin. Adaptive myelination, which fine‐tunes neural circuits in response to neuronal
Hao Hu   +3 more
wiley   +1 more source

Application of geothermal gradient in the study of thermal evolution of Paleozoic source rocks, Tarim Basin

open access: yesShiyou shiyan dizhi
Considerable debate has arisen regarding studies of the thermal history of Paleozoic source rocks in the Tarim Basin, particularly regarding the thermal evolution of ultra-deep, ancient source rocks. The evaluation method for the thermal evolution stages
Yong DING, Quanyong PAN
doaj   +1 more source

Chronostratigraphic Subdivision of the Cambrian of China

open access: yesGeologica Acta, 2003
The chronostratigraphic framework for the Cambrian of South China is reviewed. Currently four series and nine stages are recognized. The Cambrian of South China is subdivided into one pre-trilobite-bearing series, the Diandongian Series, and three trilobite-dominated series, the Qiandongian, Wulingian, and Hunanian.
openaire   +8 more sources

Talent Management in SMEs: Unraveling the Role of Contextual Factors

open access: yesHuman Resource Development Quarterly, EarlyView.
ABSTRACT Employing a multiple case study analysis, this paper explores the contextual factors—internal, external, and relational—that affect small and medium‐sized enterprises (SMEs) in designing their approaches to talent management (TM). Results underscore the significance of two prominent internal variables—namely, organizational size and ownership ...
Franca Cantoni   +2 more
wiley   +1 more source

A Multi‐Level Systems Perspective on (Un)sustainable HRM in Adult Social Care

open access: yesHuman Resource Management, EarlyView.
ABSTRACT This paper contributes to sustainable HRM theory, policy, and practice by applying and extending systems theory. A framing is developed and applied by triangulating data from 85 interviews with workers, managers, and other stakeholders (e.g., unions, employer representatives, charities) in adult social care, along with qualitative and ...
Emma Hughes, Tony Dundon
wiley   +1 more source

Modeling of Salt Tectogenesis in Connection With the Choice of the Main Directions for the Search For Hydrocarbon Deposits and Hydromineral Raw Materials Within the Kempendyai Depression (South-East оf the Siberian Platform)

open access: yesGeoresursy
A brief description of the geological structure of the sedimentary cover within the Kempendyai depression is given, in which two intervals of formation of unstable layers in the Cambrian and Devonian are distinguished, and their salt saturation is ...
B. V. Lunev   +3 more
doaj   +1 more source

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