Fission track dating of lower Tertiary rhyolitic glass rocks from Disko
نویسندگان
چکیده
منابع مشابه
An Automated Microscope Scanning Stage for Fission-track Dating
A microcomputer controlled scanning stage has been developed which greatly facilitates track counting. It has been designed specifically for the external detector method of fission-track dating, although the basic hardware could be used for a variety of different scanning requirements. With this system, the microscope stage is automatically controlled to move between corresponding points on the...
متن کاملFission Fragments Track- Etched Pores in Borate Glass
A study has been made to investigate the detection sensitivity of Borate Glass for the heavily ionizing fission fragment tracks. The latent damage tracks produced by fission fragments in Borate Glass, with and without Aluminium Oxide as an additive, have been studied under a high resolution scanning electron microscope. Tracks have been found and studied only in the Borate Glass samples with no...
متن کاملAnomalous Mesozoic thermal regime, central Appalachian Piedmont: Evidence from sphene and zircon fission-track dating
A total of 17 sphene and 45 zircon fission track ages (FTA) are reported from the Piedmont Province of Pennsylvania, Delaware, and Maryland, the Reading Prong of New Jersey, and the Newark Basin of Pennsylvania. With the exception of one sphene sample, FTA fall within a relatively restricted age range: sphene 190-217 Ma (average 199 Ma) and zircon 143-218 Ma (average 184 Ma). Near concordance o...
متن کاملCooling history and exhumation of the nepheline syenites, NW Iran: constraints from apatite fission track
Thermal history and apatite fission-track ages were determined for the Kaleybar, Razgah and Bozqush alkaline intrusions which display Eocene-Oligocene stratigraphic age. These subduction-related intrusions are located in the Alborz-Azarbaijan magmatic belt which is characterized by a Paleogene magmatic flare-up associated with extensional/transtensional tectonism. The mean of Uranium content an...
متن کاملUplift and thermal history of the Teton Range (northwestern Wyoming) defined by apatite fission-track dating
In order to determine the pattern and timing of exhumation and uplift in the Teton Range, fission-track analysis of apatites has been applied to three sections encompassing ~ 2 km of vertical relief along the Teton escarpment. The resulting data provide new insights on the doming of the Precambrian-Cambrian unconformity and on the Teton exhumation/uplift history prior to the Miocene initiation ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Rapport Grønlands Geologiske Undersøgelse
سال: 1985
ISSN: 2597-2944,0418-6559
DOI: 10.34194/rapggu.v125.7884