Early Holocene, Lacustrine sediment, Lake Erhel, Lake Hovsgol, Moisture, Mongolian Plateau, HDP-04 DRILL CORE, NORTHWEST MONGOLIA, CLIMATE-CHANGE, ENVIRONMENTAL-CHANGES, PALEOENVIRONMENTAL CHANGES, CENTRAL-ASIA, RADIOCARBON AGE, PHOTOSYNTHETIC PIGMENTS, LATE PLEISTOCENE, LAST 1 MA