Results 101 to 110 of about 4,728 (228)

Appraisal of Six Natural Mica Reference Materials for In Situ Rb‐Sr Geochronology

Geostandards and Geoanalytical Research, EarlyView.
Key Points Evaluated six natural mica reference materials for in situ LA‐ICP‐MS/MS Rb‐Sr geochronology using geochemical, microstructural and isotopic characterisation. Identified robust primary reference materials: Mount Dromedary biotite (99.37 Ma) and Mica‐Fe biotite (307.75 Ma). La Posta biotite and Högsbo muscovite are suitable secondary reference
Hugo K.H. Olierook, Bruno V. Ribeiro, Janne Liebmann, Kai Rankenburg, Fred Jourdan, Ahmad Redaa, Jarred C. Lloyd, Thomas M. Belgrano, Carlos R. Corella Santa Cruz, Yujin Jegal, Julien Mercadier, Catherine Zimmermann, Jie Yu, Andreas Zametzer, Christopher L. Kirkland, Sarah E. Gilbert, Craig D. Storey, Luc S. Doucet, Isabelle Jones, Louisa Stokes, Thomas Zack, Delia Rösel, Denis Fougerouse, Jonas Kaempf, Priyanjan Datta, Hijas Hameed, Noreen J. Evans, Malcolm P. Roberts, Juraj Farkas, Stijn Glorie, Celia Mayers, R. Adam Frew, Sarah Al Odeh, Chloe E. Roche, Massimo Chiaradia, Alicia M. Cruz‐Uribe, Alan S. Collins, Andreas Karlsson, Anusha Shantha Kumara   +38 more
wiley   +1 more source

A New Approach to Transforming Airborne Electromagnetic Data into Models of Sediment Type

Groundwater, EarlyView.
A new methodology provides the relationship needed to transform electrical resistivity measurements from airborne electromagnetic surveys to sediment type. By accounting for the physics of the measurement and the quality of the driller's logs used in developing the transform, the method improves the accuracy of derived sediment type models.
Rebecca Prentice, Rosemary Knight, Peter Kitanidis   +2 more
wiley   +1 more source

Metamorphic or Igneous Zircon? Classification Through Rare Earth Elements, Machine Learning and Logistic Regression

Journal of Metamorphic Geology, EarlyView.
ABSTRACT Zircon is a common, highly refractory accessory mineral found in sedimentary, igneous and metamorphic rocks that forms through various processes (e.g., magmatic, hydrothermal, metamorphic growth and recrystallization). Trace element compositions of detrital zircon have been widely applied to understanding tectonic processes and continental ...
Jarrod M. Burges, Chris Yakymchuk, Michael P. DiMaio, Timothy C. C. Lui, Anirudh Prabhu, Shaunna M. Morrison   +5 more
wiley   +1 more source

The XenCart Protocol: A method for Alcian blue labeling and quantitative analysis of craniofacial cartilage in Xenopus

Journal of Anatomy, EarlyView.
The XenCart Protocol provides a reproducible way to visualize and quantify how the developing craniofacial skeleton responds to experimental perturbation. Embryos are exposed to defined conditions, craniofacial cartilage is stained with Alcian blue, imaged, and analyzed morphometrically.
Umar Aziz, Leona Bhandari, Claudia Lizama, Riya Maurya, Amanda J. G. Dickinson   +4 more
wiley   +1 more source

Reconstructing the major skull myology of the giant stem‐amphibian Mastodonsaurus: A case study for early tetrapods

Journal of Anatomy, EarlyView.
We reconstruct the major cranial musculature of the giant stem amphibian Mastodonsaurus giganteus, revealing a differentiated jaw‐adductor system, a probable sesamoid pulley, and previously unrecognised muscles. This EPB‐based case study establishes an anatomical framework for modelling feeding in early tetrapods and supports interpretations of ...
Daniel Schwarz, Stephan Lautenschlager, Florian Witzmann, Raphael Moreno, Eudald Mujal, Rainer R. Schoch   +5 more
wiley   +1 more source

Feldspar Albitization With Implications for Reservoir Quality Evolution of Eocene Turbidite Sandstones in Offshore Espírito Santo Basin, Eastern Brazil

Journal of Petroleum Geology, EarlyView.
ABSTRACT The diagenetic albitization of plagioclase and K‐feldspar grains is a transformative process that significantly alters sandstone's detrital composition and formation water chemistry, impacting reservoir quality. In this study, Eocene turbidite sandstones from the offshore Espírito Santo Basin, Brazil, were investigated to elucidate the role of
Eveline E. Zambonato, Luiz F. De Ros, Howri Mansurbeg   +2 more
wiley   +1 more source

Resolving Agile Ambidexterity: Between Ambivalence, Adaptation, and Accommodation

Public Administration, EarlyView.
ABSTRACT Public bureaucracies address challenging and complex problems by applying agile work practices when standard operating procedures or routines fail. In these situations, public managers need to decide whether to exploit existing bureaucratic routines or explore novel solutions through non‐routine agile work practices.
Ines Mergel
wiley   +1 more source

Mesophotic octocoral larval settlement preferences and behaviors

Restoration Ecology, EarlyView.
Abstract Introduction Lab‐based coral reproduction is advancing restoration efforts to support coral populations injured by the 2010 Deepwater Horizon oil spill. Objectives This study aimed to answer foundational questions concerning coral spawning and larval settlement that need to be resolved for these mesophotic and deep‐sea coral species before ...
Mark McCauley, Julia Johnstone, William G. Jenkins, Jayci Grosso, Arielle Pollock, Jonathan M. Quigley, Leigh‐Anne Carlson, Christopher L. Gardner, Peter J. Etnoyer, Kristopher G. Benson, Amanda W. J. Demopoulos   +10 more
wiley   +1 more source

‘Chrystalline Talk’: Thomas Browne's Poetics of Concretion and Mineral Plain Style

Renaissance Studies, EarlyView.
ABSTRACT This article charts the figuration, both material and rhetorical, of mineral bodies in early modern natural philosophy, paying particular attention to the second book of Thomas Browne's Pseudodoxia Epidemica (1646). It argues that concretions (stony calculi and crystals formed through the aggregation of physical matter) make manifest a mineral
Jess Dunmore
wiley   +1 more source

Human–Animal Comparisons: Supporting and Criticizing Female Subjugation in Renaissance Italy

Renaissance Studies, EarlyView.
ABSTRACT Studying gender history through an animal history lens, or vice versa, simultaneously increases our knowledge of ideas about gender and human–animal relations. This approach has particular merit for the Renaissance period, as it witnessed an upsurge in discourse about both the human–animal divide and the distinction between men and women.
Marlisa den Hartog
wiley   +1 more source