Geobulletin alpha

Innovative Micropile Construction with DTH System 

Our friends at Deep Excavation posted about an interesting micropile case study in Northern Baltimore County for a bridge replacement project. The project consisted of 38 Micro Piles; 7” OD X 38 ft. deep including a 7 ft. rock socket, installed on a 3/1 batter, load tested to 272,000 lbs. What caught my attention is the down the hole hammer system used for installing the micropiles. The system uses a ring bit to install the casing and allow the drill string to continue beneath the bedrock [...]

If Journalism is About Truth, Then Why Are Top Newspapers Knowingly Publishing This Lie 

Astrology is bunk. Hopefully you know that, but it really does beg the question of why almost every Sunday paper in America will publish a load of silly lies tomorrow, and yes it does matter. Science literacy is a serious issue in the U.S. How do I know? First of all, not ONE of the top Republican candidates for President of the United States will admit that climate change is

Go ahead. Take your toddler to the museum! 

by Victoria Smith When my children were younger, and I was hip to the toddler scene, I would schedule play dates at all the usual places: I’d push the stroller to the park, load up the red wagon for the … Continue reading

Monday Geology Picture: South African Wind Farm 

South Africa is currently facing a significant shortage of electricity. Recently, there have been regular periods of “load shedding” or planned power outages. Basically, there is often not enough power to go around, so the power is purposely turned off on a rotating schedule. In the neighborhood where I live and work in Cape Town, the power is regularly turned off for two hours a day or sometimes for four or more

M4.0 Missouri Earthquake - Oh, New Madrid, where is thy sting? 

Finally, something interesting.  Although Oklahoma is the New-New Madrid, this is the grand old lady herself, still active.  Both places have identical mechanisms, that of a giant water drain, but NM has shot its load.  But water is still flowing in, and it can extend. This earthquake is right at the end of the southern shear wing.  You can see it is a deep strike-slip along the

From Little Treasures Come Big Stories: Travels Through Death Valley National Park 

Photo by Mrs. Geotripper I returned from Death Valley to a load of work back on campus, but over the next few days I'll be posting on some of our adventures. On Saturday morning, we awoke to sunrise on the Mesquite Dunes east of Stovepipe Wells. We grabbed our packs and notebooks and hit the road. We had a lot of ground to cover. Oddly enough, for having spent two days getting to

Formlabs hi-res 3D printer set to start shipping 

For $3,299 and what I would expect to be a load of customs hassle. They also have a rebate on the resin, down from $149 per liter. Anyone getting one of these, please let me know! Would love to hear about your experience. Below a link to the