Logged to 868.6 feet, first transitional unit

Today we were able to log core boxes to a depth of 868.6 ft, that's 125.6 ft logged in a single day.  Not bad since I was called away multiple times to help out with other duties.  Since we're doing so much logging, I thought I'd show you an example of the annotated photos that we're including in our log reports:

As you can see, there are two core boxes in each logging photo.  We add a distance and color scale on the left side of the photo, and label the top and bottom depths of rock shown in the photo in red.  Features are usually circled or pointed to and labeled in blue, and any contacts (none in this photo) are drawn with a thick blue line.  The purple dashed lines refer to internal boundaries within a unit (e.g. pahoehoe flow lobe boundaries that are formed when lobes with the same lithology are emplaced on top of each other during the same eruptive event).  The green box and "pc" inside show the location where a point count was taken to quantify the mineralogy and vesicularity of the rock unit.  The rock in the photo above is interesting because it has characteristics of both an ʻaʻa and a pahoehoe flow, this was the first unit we've logged where we had to call the flow type "transitional."  There is additional information about the rock in each photo in text form on the facing page of the photo in our final log reports.