The scaling factors of Stone (2000), Dunai (2000), and Desilets et al.(2003, 2006) more accurately represent the scaling of cosmogenic nuclide production rates with latitude and elevation, but the increased sophistication of these methods is an obstacle to their widespread use.Due to its long half-life (~1.4 Ma), however, 10Be does not record short episodes of intermittent surface cover, e.g.during phases of glacier readvance, which might have interrupted the general deglaciation trend.Carolyn is currently the director of the Yukon Geological Survey.YGS is one of Canada's top-ranked geological surveys, carrying out research that ranges from mapping the geology of Yukon's mountain ranges, unraveling its glacial history, studying active earthquake zones, understanding permafrost, and providing information that supports the discovery of Yukon's mineral and energy resources. I was born and raised in the Yukon and I am a beneficiary of the Ta'an Kwatch'an First Nation - the people of Lake Laberge. in Geology at the University of Alberta in 1985, and I finished my M. in Geology (Sedimentology) at the University of Calgary in 1993.The first applications of Terrestrial Cosmogenic Nuclide (TCN) geochronology appeared about 20 years ago (Kurz, 1986; Nishiizumi et al., 1986; Phillips et al., 1986).
Data from both cosmogenic nuclides are in overall good agreement with each other confirming continuous exposure of the Gotthard Pass area throughout the Holocene.
TCN dating is no longer a specialized tool used by a small group of experienced users, but has found an ever growing base of users who are not necessarily familiar with all the details of the method. On the one hand, a better understanding of cosmogenic nuclide production systematics has improved the accuracy of TCN dating.
But on the other hand, many users of the method may be less familiar with its intricacies than was the case in the pioneering days.
Iodine is a chemical element with symbol I and atomic number 53.
The heaviest of the stable halogens, it exists as a lustrous, purple-black metallic solid at standard conditions that sublimes readily to form a violet gas.