The “Hole” Story about Ocean Cores

Lab groups can work together to examine high resolution photos and data from four cores taken at various depths in this first-of-its-kind complete section of oceanic crust. This poster includes background information and five classroom activities on the back.

Fault Core: 141 Triple Junction Core Kit

Faulted claystone, silty claystone, sandy silty claystone from late Pleistocene subunit IIC recovered from hole B at Site 863.  This site is located at the base of the trench slope of the Chile Trench where the Chile Ridge is being subducted.  One of the objectives of drilling at this site was to identify the structural fabrics and deformation caused by rift subduction.

Why study forams?

Foraminifera allow scientists to look at the past and compare it to today’s world to see how the Earth has changed over time. Scientists gain a better understanding of the Earth by looking at the distribution of foraminifera. Liv- ing forams are like mirrors on present-day condi- tions, while fossil foraminifers provide clues to past environments and how the surface of the Earth has changed over time. There are over 4000 extant (living) foram species today,…

Cretaceous Impact Kit

Sixty five million years ago, a 10 km meteorite crashed into what is now Mexico’s Yucatan Peninsula, creating a 177 km crater and causing mass extinctions across the globe. There are two kits focused on this event that challenge students to look at the evidence to make inferences about the past. General Introduction Cretaceous Impact Kit:     Introduce the JOIDES Resolution research vessel and scientific ocean drilling;     Demonstrate how cores and sediment records drilled…