Originally posted by RobG Wow, 33 images! Well done - an interesting feature, too.
Thanks Rob!
Originally posted by RobG We don't have anything like active vulcanism in mainland Australia.
Well, the volcanic activity hasn't been active recently, although it is part of the current epoch, the Holocene period.
From Wikipedia:
Quote: The Craters of the Moon Lava Field spreads across 618 square miles (1,601 km2) and is the largest mostly Holocene-aged basaltic lava field in the contiguous United States.[6] The Monument and Preserve contain more than 25 volcanic cones, including outstanding examples of spatter cones.[7] The 60 distinct solidified lava flows that form the Craters of the Moon Lava Field range in age from 15,000 to just 2,000 years.[8] The Kings Bowl and Wapi lava fields, both about 2,200 years old, are part of the National Preserve.
This lava field is the largest of several large beds of lava that erupted from the 53-mile (85 km) south-east to north-west trending Great Rift volcanic zone,[9] a line of weakness in the Earth's crust. Together with fields from other fissures they make up the Lava Beds of Idaho, which in turn are in the much larger Snake River Plain volcanic province. The Great Rift extends across almost the entire Snake River Plain.
Australia has it's share of volcanic activity, although most from much farther in the past, around 20 to 25 million years ago, there are some volcanoes that are from the current epoch, around 7,000 years old.