U-Pb zircon geochronology data for Spinney Mountain and Guffey NW Geologic Maps, Park County, CO

This data release includes laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS) U-Pb zircon geochronology data from four samples collected from rock units located in the Spinney Mountain Quadrangle and the Guffey NW Quadrangle in Park County, Colorado. Samples were collected from gniess and granite rocks, and age data was used to support publication of updated maps by the Colorado Geological Survey.

本次发布的数据包含采自美国科罗拉多州帕克县斯皮尼山图幅（Spinney Mountain Quadrangle）与加菲西北图幅（Guffey NW Quadrangle）内岩石单元的4件样品的激光剥蚀电感耦合等离子体质谱法（laser ablation inductively coupled plasma mass spectrometry，LA-ICPMS）铀-铅（U-Pb）锆石地质年代学数据。样品采自片麻岩与花岗岩岩体，所得年代数据用于支撑科罗拉多地质调查局（Colorado Geological Survey）更新版地质图的公开出版。