RUI: Systematics of Regional-Scale Erosion in the Southern Alps of New Zealand, as Revealed by Fission-Track Dating of Detrital Zircon and Apatite

RUI：碎屑锆石和磷灰石裂变径迹测年揭示的新西兰南阿尔卑斯山区域规模侵蚀的系统学

• 批准号: 9614730
• 负责人: John Garver
• 金额: $ 3.81万
• 依托单位: Union College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-01-01 至 1999-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9614730&HistoricalAwards=false
• 关键词: RUI; Systematics; Regional; Scale; Erosion

9614730 Garver Rates of tectonic uplift and erosion rates determine the topographic expression of an area undergoing deformation, but are difficult parameters to measure. This study will determine the rates of erosion of active, rapidly eroding mountains by studying the sediments that are shed from these mountains. In particular, apatite and zircon crystals will be collected from recent and relatively recent sediments. Because of their uranium content, the crystals preserve the ages of their cooling which occurred during uplift of the mountains and exhumation of the rocks. The study area is the Southern Alps of New Zealand, where recent uplift is relatively well known, and sediments are readily sampled. Results are expected to help understand the role of erosion rates during orogensis in general.

小行星9614730 构造抬升速率和侵蚀速率决定了变形地区的地形表现，但它们是难以测量的参数。 这项研究将通过研究从这些山脉脱落的沉积物来确定活动的、快速侵蚀的山脉的侵蚀速率。 特别是磷灰石和锆石晶体将从最近和相对最近的沉积物中收集。 由于其铀含量，晶体保存了山脉抬升和岩石剥露期间冷却的年龄。 研究区域是新西兰的南阿尔卑斯山，那里最近的隆起是相对众所周知的，沉积物很容易取样。 结果预计将有助于了解一般的造山作用过程中的侵蚀速率的作用。