Maths at sea: Short teacher rant here – Please don’t tell your children that you were rubbish at maths, can’t do maths, found maths boring, that maths is really hard. This makes a teacher’s work really difficult. The child believes it is OK to give up, they too just can’t do it, at the end… Continue reading Maths on board.
We’ve had an exciting day today. We have finished shooting with the airguns (top left) and brought in the streamer (middle top) along with seaweed (top right) – this bit is from the tailbuoy. Autosub (bottom left) was launched again this evening, it is controlled by a tablet (bottom right) Below: Autosub spirals down… Continue reading Autosub likes spirals and figures of eight.
OBS Above: Interpretation of OBS data (Thank-you to Prof Christine Peirce and Matt Funnell) This is from OBS number 7 line L of our seismic surveys on JC132. So very up to date information – hot off the press!! When the Ocean Bottom Seismic Instruments come to the surface scientists are able to get a… Continue reading OBS data – hot off the press and OCC photo
Volcanism at the Mid Atlantic Ridge The Eurasian Plate is moving slowly away from the North American Plate – at about the rate your fingernails grow. This is a fairly slow movement compared to other plates. There is no gap between the plates, however the pulling of the lithospheric plates sometimes forms a rift valley. The… Continue reading Volcanism at the MAR
In the following maps the same base information has been used throughout. The ONLY difference is presentation. (This blog will be very useful for all students who may be asked about data presentation in their exams.) North is at the top of all the maps/images. Contours Here have three maps of the seafloor plotted with contours.… Continue reading Data Presentation
A few basics about normal faults: Above is a model of a normal fault – drawn very kindly by Matt Falder for me. The footwall is under the fault plane and the hanging wall above the fault plane. Throw is the vertical the movemnent and heave the horizontal movement. Most of our terms for… Continue reading Faults and blue sky
The role of serpentine: Deserts are full of sand, desert sand is mostly quartz. Quartz is very stable at the Earth’s surface, as a result it resistant to weathering and erosion, resistant to being altered. I use the Peter Kay example in class. He talks about ‘Hob Nobs’ being the ‘marine’ of biscuits with an… Continue reading Serpentine and maps.