GLACIER REGIMES, PERIGINCIAL LANDFORMS, ANTI HOLOCENE CLIMATE-CHANGE IN THE KIGLUAIK MOUNTAINS, SEWARD PENINSULA, ALASKA, USA

Three glaciers of the Kigluaik Mountains are very small and the only o nes on the Seward Peninsula and surrounding west-central Alaska, but t hey are important climatically. They display the typical recession in response to recent warming, as well, as moraine evidence of Little Ice Age worldwide cooling peaks of the 17th and 19th centuries. The termi nal moraine of Grand Union glacier, dated lichenometrically at about A .D. 1645, indicates that equilibrium line altitudes fell about 170 m f rom present levels at this time, or one half the amount estimated loca lly for late Wisconsin glaciation. Periglacial landforms throughout th e Kigluaik Mountains display ample evidence of the earlier Neoglacial cooling of the Holocene. Minimum (Lichenometric) ages from active tong ue-shaped rock glaciers and protalus ramparts, as well as maximum C-14 ages for pingo development are compatible with a wide range of publis hed proxy climate data indicative of middle to late Holocene cooling, particularly from about 4000 to 3000 yr ago. Increasing warmth of the late 20th century is showing its direct effects on Grand Union glacier , the only active glacier remaining in this transitional maritime-cont inental climatic regime of western Alaska. With an estimated net mass balance of -0.8 m water equivalent, it is, along with the other two st agnant glaciers of the Seward Peninsula, projected to disappear by abo ut A.D. 2035.