ERTH 2403 Lecture 2: jan19

• School: Carleton University
• Department: Earth Sciences
• Course: ERTH 2403
• Professor: Hafida El Bilali

Document Summary

Meteor german research vessel crossed atlantic for 2 years used echo sounder (most important innovation) first to use echo sounder to study depth and topography of seafloor. Post wwii technology: hms challenger ii (1951) Measured depth discovered challenger deep (deepest part of deepest trench of ocean: submarine nautilus (1958) beneath north pole, submersibles manned and remote. Walsh and piccard us navy descent into challenger deep of mariana trench in trieste: glomar challenger (1968) drilled into ocean bottom more than 6000 m seafloor spreading and plate tectonics, joides resolution (1985) deep sea drilling. 2003 deep-drilling by integrated ocean drilling program joint oceanographic institutions first global program designed to study the nature of ocean floor = deep sea. Japanese drill cores up to 11 km larger than joides and larger mass. Most equipped geological lab: okeanus explorer (2010) Remotely operated vehicles (rovs) remotely operated autonomous instructions programmed before release collect samples.