![]() ![]() ![]() To help determine the timing of eruptive activity, geologists use a radiocarbon age-dating technique. Furthermore, we want to know the spatial distribution of the deposits, and how frequently and where the different types of eruptions occur. In order to understand how a volcano will behave, geologists map the deposits of past eruptions.Īn important element for characterizing volcanic deposits is to establish if the eruption was predominantly effusive (characterized by lava flows) or explosive. One of the fundamental premises of geology is that the key to understanding the future is to look at the past. The age of this charcoal, determined by an accelerator mass spectrometer radiocarbon method, is 2075 plus or minus 36 years before present. The dark-colored charcoal (left of rock hammer) from a log buried by lava was found at the base of an ‘a‘ā flow in the District of Ka‘ū on the Island of Hawai‘i.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |