Windswept: Mount Washington Observatory Bulletin
Excerpt from summary, p. 83: In addition to marking the distribution of snowpatches and the relative age of patterned ground features, local departures from the regional lichenometric trend may also be used to define and relatively date: changes in the distribution of soils and vegetation, avalanche deposits, and abrasion of hiking trails. Lichenometric studies will be undertaken in the following year to date more precisely features and events on Mount Washington.
Mayewski, Paul Andrew and Jeschke, Peter A., "Lichenometric Distribution of Rhizocarpon geographicum on Mt. Washington: A Relative Dating Tool." (1978). Earth Science Faculty Scholarship. 200.
Mayewski, P.A. & Jeschke, P.A. (1978). Lichenometric distribution of Rhizocarpon geographicum on Mt. Washington: A relative dating tool. Windswept: Mount Washington Observatory Bulletin, 19(4), 79-84.
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