Scanning electron microscope images Microscopic images of discrete samples were acquired using a scanning electron microscope (SEM) and captured as image files. These files were uploaded along with a brief description and a record of the microscopic conditions when the image was taken. Data File format Exp: expedition number Site: site number Hole: hole number Core: core number Type: type indicates the coring tool used to recover the core (typical types are F, H, R, X). Sect: section number A/W: archive (A) or working (W) section half. Top offset on section (cm): position of the upper edge of the image, measured relative to the top of the section. Bottom offset on section (cm): position of the lower edge of the image, measured relative to the bottom of the section. Top depth CSF-A (m): location of the upper edge of the image expressed relative to the top of the hole. Bottom depth CSF-A (m): location of the lower edge of the image expressed relative to the top of the hole. Top depth [other] (m): location of the upper edge of the sample expressed relative to the top of the hole. The location is presented in a scale selected by the science party or the report user. Bottom depth [other] (m): location of the lower edge of the sample expressed relative to the top of the hole. The location is presented in a scale selected by the science party or the report user. Image filename: filename of SEM TIF image. Text filename: text file containing SEM experiment metadata. Category: category of the specimen pictured in the image (e.g., fossil, structure, composition). Observable: description of pictured specimen. Magnification: magnification setting on the SEM when the picture was taken. Instrument: the microscope instrument used to acquire the image. Timestamp (UTC): point in time at which an observation or set of observations were made. Text ID: automatically generated unique database identifier for a sample, visible on printed labels. Test No: unique number associated with the instrument measurement steps that produced these data. Sample comments: observations recorded about the sample itself. Test comments: observations about a measurement or the measurement process; some measurement observations may be under Result comments. Result comments: observations about a measurement or the measurement process; some measurement observations may be under Test comments.