Results 111 to 120 of about 3,716 (224)

Sphene Emotional: How Titanite Was Shocked When the Dinosaurs Died

, 2018
Accessory mineral geochronometers such as zircon, monazite, baddeleyite, and xenotime are increasingly being recognized for their ability to preserve diagnostic microstructural evidence of hypervelocity processes.
Erickson, Timmons M., Pearce, Mark A., Rasmussen, Cornelia, Morgan, Joanna V., Gulick, Sean P. S., Wittmann, Axel, Rae, Auriol, Ferrière, Ludovic, Cavosie, Aaron J., Collins, Gareth S., Tomioka, Naotaka, Wheeler, John, Timms, Nicholas E., Poelchau, Michael H.   +13 more
core  

Transect LDP12 apatite, zircon, and titanite U-Th/He data

U-Th/He apatite, zircon , and titanite analytical data from the LDP12 ...
Ketcham, Richard, Shuster, David, Reiners, Peter, Zeitler, Peter, Stockli, Daniel   +4 more
core   +1 more source

Cryptic geological histories accessed through entombed and matrix geochronometers in dykes

Communications Earth & Environment
Deep geology of ancient continental crust can be difficult to access, with direct observation restricted to limited exposures. The age and composition of hidden geology can be gleaned from indirect isotopic modelling or via detrital minerals within ...
Christopher L. Kirkland, Maximilian Dröllner, Raphael Quentin de Gromard, Bruno V. Ribeiro, Hugo K. H. Olierook, Michael Hartnady, Milo Barham, Janne Liebmann, Hugh Smithies, Andreas Zametzer   +9 more
doaj   +1 more source

Separation, reserve estimation and radioactivity responsibility of the economic heavy minerals of East El- Arish black sand, North Sinai, Egypt. [PDF]

Sci Rep, 2023
Awad M, El Mezayen AM, El Alfi SM, Ali HH, Sayyed MI, Hanfi MY.   +5 more
europepmc   +1 more source

Thermodynamic properties and stability of AIF-bearing Titanite CaTiOSi04-CaAIFSi04

, 2015
Calorimetric and experimental data on AlF-bearing titanite are presented that yield thermodynamic properties of CaAlFSiO4, as well as activity-composition relations of binary titanite CaTiOSiO4-CaAlFSiO4.
Troitzsch, Ulrike, Ellis, David
core  

Ichnofossils in volcanic glass from palaeoproterozoic hydrothermal vents were burrowed by microorganisms probably seeking phosphate. [PDF]

Commun Earth Environ
Papineau D.
europepmc   +1 more source

Metamorphic evolution of amphibolite from Proto-Tethys South Altyn orogen and its geological significance. [PDF]

Sci Rep
Zhang S, Ma T, Gai Y, Liu L.
europepmc   +1 more source

Provenance and economic potential of Egyptian black sands: integrated mineralogical and geochemical insights. [PDF]

Sci Rep
Khedr MZ, Zaghloul H, Takazawa E, El-Nahas H, Azer MK, Mansour S, Zafar T, El-Shafei SA.   +7 more
europepmc   +1 more source

Incipient continent formation by shallow melting of an altered mafic protocrust. [PDF]

Nat Commun
Hartnady MIH, Schorn S, Johnson TE, Zametzer A, Schmitt AK, Ribeiro BV, Hugh Smithies R, Barham M, Kirkland CL.   +8 more
europepmc   +1 more source

Intermediate structures in radiation damaged titanite (CaTiSiO 5 ): a Raman spectroscopic study

Effects of radiation damage and thermal annealing on the crystal structure of natural titanite (CaTiSiO5) were studied using Raman spectroscopy. The results show that well crystallized natural titanites generally have the P21/a structure at the unit cell
Bismayer, Ulrich, Groat, Lee A, Salje, Ekhard K. H., Redfern, Simon A. T., Zhang, Ming   +4 more
core   +1 more source