Tectonic plates, plate tectonic activity, tectonics

The geological theory developed to explain observations that interactions of the brittle plates of the lithosphere with each other and with the softer underlying asthenosphere lead to large-scale changes in the Earth. The theory of plate tectonics initially stemmed from observations of the shapes of the continents, particularly South America and Africa, which fit together …

Termination of permit

A preliminary permit shall terminate upon the holder’s notifying the Commissioner that he has completed his investigations, such notification to be given within one month after completion of the investigations; upon the Commissioner’s cancelling the permit for non-compliance with a condition imposed upon the holder. > >

The Convention for the Protection of the Marine Environment of the North-East Atlantic

The 1992 OSPAR convention is the current instrument guiding international cooperation on the protection of the marine environment of the North-East Atlantic. It combined and up-dated the 1972 Oslo Convention on dumping waste at sea and the 1974 Paris Convention on land-based sources of marine pollution. The signatories to the convention are Belgium, Denmark, Finland, …

Tanker; Tank car; Oil tankers; Oil-tanker

Tankers are used to transport crude oil and refined products in waterborne trade. Ship carrying crude oil or refined products. The tankers can be used in either “clean” (light refined products such as gasoline and diesel fuel) or “dirty” (residual fuel and crude oil) trade. The tankers range in size from the small vessels used …

Tankers and pipelines for crude oil

There are two modes of transportation for inter-regional trade: tankers and pipelines. Tankers have made global (intercontinental) transport of oil possible, and they are low cost, efficient, and extremely flexible.  Pipelines, on the other hand, are the mode of choice for transcontinental oil movements. Not all tanker trade routes use the same size ship. Each …

Telluric currents

If you have heard of the Northern Lights, then you may know that they’re generated by electrical currents from the earth’s surface (both sea and land). Telluric current is the name for these naturally occurring low-frequency electrical currents. Oil companies examine the currents when analyzing petroleum reserves.