Results 161 to 170 of about 112,509 (371)

Metamorphism and the origin of granitic rocks, Northgate district, Colorado [PDF]

, 1957
Thomas A. Steven
openalex   +1 more source

Tracking Sediment Mixing Along the Lower Danube River From the Carpathians to the Black Sea

Terra Nova, EarlyView.
ABSTRACT We use detrital zircon U–Pb geochronology as a sediment provenance tracer in modern river sands to better understand how tectonic, climatic, and anthropogenic processes modulate sediment transport dynamics of the Carpathians to the Black Sea source to sink system.
Iulian Pojar, Tomas Capaldi, Cornel Olariu, Andrei‐Gabriel Dragoș, Relu Dumitru Roban, Mihaela C. Melinte Dobrinescu   +5 more
wiley   +1 more source

Thermal Alteration of Labile Elements in Carbonaceous Chondrites

, 2018
Carbonaceous chondrite meteorites are some of the oldest Solar System planetary materials available for study. The CI group has bulk abundances of elements similar to those of the solar photosphere.
Andronikov, Alexandre, Blum, Joel D., Goreva, Yulia S., Klaue, Bjoern, Lauretta, Dante S., Springmann, Alessondra, Steckloff, Jordan K.   +6 more
core   +1 more source

VI.—On a Supposed Case of Metamorphism in an Alpine Rock of Carboniferous Age [PDF]

, 1883
T. G. Bonney
openalex   +1 more source

P‐T‐t‐d Evolution of Low‐Grade Metamorphic Xenotime, Eastern Alps (Austria)

Terra Nova, EarlyView.
ABSTRACT In situ LA‐ICP‐MS U‐Pb dating of xenotime was used to establish the age of low‐grade metamorphism in Permian metasediments of the Austroalpine Unit (Eastern Alps, Austria). Complexly zoned xenotime in chloritoid‐bearing metasedimentary samples possesses distinct MREE‐rich domains. In the eastern sample, this domain yielded a date of c. 135 Ma,
M. S. Hollinetz, B. Huet, C. R. M. McFarlane, D. A. Schneider, B. Grasemann   +4 more
wiley   +1 more source

Aspects of the taphonomy of the Cambrian Explosion in North Greenland [PDF]

, 2017
This thesis describes and elucidates the taphonomic pathways responsible for the exceptional preservation of some of the most common elements of the Sirius Passet Lagerstätte (early Cambrian), North Greenland.
STRANG, KATIE,MARGARET
core  

III.—Notes on the composition of Clays, Slates, etc., And on some points in their Contact-Metamorphism [PDF]

, 1894
W. Maynard Hutchings
openalex   +1 more source

Near‐Synchronous Cambrian Evolution of the Transbrasiliano‐Kandi‐4°50′ Shear Zone in South America and Africa

Terra Nova, EarlyView.
ABSTRACT The Transbrasiliano‐Kandi‐4°50′ (TK4) shear zone in western Gondwana crosscuts South America and NW Africa for at least 6000 km. Despite its impressive size, the timing of the main episode of dextral ductile shearing is uncertain. We present detailed in situ multi‐mineral geochronology of mylonites from both Brazil and Algeria supporting that ...
F. A. Caxito, B. V. Ribeiro, F. Alkmim, A. Deramchi, C. L. Kirkland   +4 more
wiley   +1 more source

Massive reduction of RyR1 in muscle spindles of mice carrying recessive Ryr1 mutations alters proprioception and causes scoliosis

The Journal of Physiology, EarlyView.
Abstract figure legend Intrafusal muscles contained within muscle spindles are endowed with ryanodie receptor 1 (RyR1) calcium channels and participate in proprioceptor function. Mutations in RyR1 linked to severe RYR1‐congenital myopathies affect calcium release from both extrafusal as well as intrafusal muscles.
Alexis Ruiz, Sofia Benucci, Hervé Meier, Georg Schultz, Katarzyna Buczak, Christoph Handschin, Rodrigo C. G. Pena, Susan Treves, Francesco Zorzato   +8 more
wiley   +1 more source

Dynamo-Metamorphism [PDF]

, 1891
C. A. McMahon
openalex   +1 more source