HVO's geological sample collections are an important resource
On December 30, 2015, an HVO geologist wore protective gear during collection of a fresh lava sample for chemical analysis from a Pāhoehoe breakout along scattered Pu‘u ‘Ō‘ō lava flows. Inset image caption: Metadata is written on a bag that holds a sample taken from Pāhoehoe that was collected on August 18, 2006. The front of the bag notes the date and time the sample was collected, sample-collector initials, a description of the sample, and the unique sample identifier; the coordinates of the sample collection location are written on the back of the sample bag. USGS photos.