utah and california were the region of the united states that died pluvial lakes formed in during the last ice age.
utah and california were the region of the united states that died pluvial lakes formed in during the last ice age.
what region of the united states die pluvial lakes form in during the last ice age?
utah and california
the region is generally lightly populated, with much of its southwestern part being uninhabited national park. much of the scenery was heavily glaciated during the last ice age, and as such contains many broad u-shaped valleys, several of which are filled with large lakes. these include the country's deepest lake, lake hauroko, and three of the country's four largest lakes. if the mackenzie basin is included, seven of the country's ten largest lakes form part of the southern lakes.
southern lakes (new zealand)
the climatic conditions that cause glaciation had an indirect effect on arid and semiarid regions far removed from the large ice sheets. the increased precipitation that fed the glaciers also increased the runoff of major rivers and intermittent streams, resulting in the growth and development of large pluvial lakes. most pluvial lakes developed in relatively arid regions where there typically was insufficient rain to establish a drainage system leading to the sea. instead, stream runoff flowed into closed basins and formed playa lakes. with increased rainfall, the playa lakes enlarged and overflowed. pluvial lakes were most extensive during glacial periods. during interglacial stages, with less rain, the pluvial lakes shrank to form small salt flats.
quaternary glaciation