Map of SUGAR lines, showing two possible locations of the ancient suture (red dotted lines)
We collected similar data in western Georgia last year during the first phase of the SUGAR experiment imaging these same features. During that field program, we deployed 1200 seismometers and set off 11 controlled blasts along a 250-mile-long line, which felt like a big project at the time. But this year, we will go even bigger! In eastern Georgia, we need to span an even larger area to encompass our geological targets. One of the reasons that we need to look at a bigger swath of the earth is that there is a debate about the location of the suture here – it could be as far north as Milledgeville, GA or as far south as Baxley, GA. (In case you are not up on your Georgia geography, those towns are ~100 miles apart). This means longer profiles, more instruments and more blasts! We will deploy a total of 3000 seismometers and detonate 25 blasts along two profiles. The longer profile spans 350 miles from Winder, GA to the Florida-Georgia state line near St Mary’s Georgia. Stay tuned!
Donna Shillington, LDEO
Greenland’s iceberg factory: Where the Empire State Building is too short a yardstick - New York Times
To Grasp What We're Doing to the Planet, You Need to Understand this Gigantic Measurement - Washington Post
Far away, a beloved dot
Arcs through cold and shrouded spaces,
Not lonely, as we had once thought,
But circled by more rocky faces:
Charon, Nix, and Hydra found,
Classified as “dwarf” or pseudo,
And though such bodies now abound,
None sparks wonder quite like Pluto.
On the hunt for Planet X,
Tombaugh found a ball of light,
Among a crowd of tiny specks;
Imaginations soon took flight.
Elusive is this outerworld;
Nine years ago we took a dare –
To deepest space, a scouter hurled
… and soon it will be there!
This is one in a series of posts by Katherine Allen, a researcher in geochemistry and paleoclimate at the Lamont-Doherty Earth Observatory and the Department of Marine and Coastal Sciences at Rutgers University.