Link

Recently, the state geologist for Maine, Bob Marvinney, came and visited our compound. We gave him a grand tour of the peninsula and showed him around the rocks. There will be more to come on this excellent visit and some of the rocks we saw, but to keep yourself busy have a look at the Maine Geological Survey’s website.

It is a great resource for us and for geology fanatics across the globe. The most important publication on the website for us is the 1:100,000 Bath Quadrangle and map published in 2002 by Hussey and Berry. it is in the maps and publications page.

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Working Inside

We have spent a lot of time out of doors over the last couple weeks but as we cover more and more area we are starting to spend some more time on the computer. The evenings of last week and today’s rainy Monday were good opportunities to get some serious debate in over polygons and map details.

Soon, once we have some more detailed polygons, I’ll post the work in progress. For now, here are some images of us in debate and working together on drawing some lines… We project the map on the wall so all four of us can work together.

Mapping with the input of four different people can be incredibly challenging.

Here is Heather at the control center and we call this person the “driver” because using ArcGIS is like driving an 18-wheeler. Or so I think.

Peter added his thoughts from the eastern side of the peninsula.

That’s all for now from Shortridge! More to come soon!

First Steps

It has been almost exactly one month since the proposal for this project was submitted to the USGS. The proposal will be reviewed by the committee later this month just prior to Christmas and announcements about accepted proposals should be made in January.

The proposed mapping area is Small Point, Maine – the southernmost point of the Phippsburg Peninsula. Maine’s coastline is almost exclusively defined by metamorphic rock and Small Point is no exception. The goal of the study to determine exactly how this area fits into the huge geologic picture of Maine. To find out more about the geology of coastal Maine, I highly recommend visiting the Maine Geological Survey. They have slideshows with excellent descriptions of Maine’s Bedrock. If you are looking for a more detailed history try checking out the Simplified Bedrock Map of Maine, or this summary of Maine’s Bedrock History.

The people working on the project are:

Professor Dykstra Eusden

Jennifer Lindelof (Bates College, Class of ’12)

Heather Doolittle¬†(Bates College, Class of ’12)

Haley Sive¬†(Bates College, Class of ’12)

So, the biggest question you are asking is, “Why Small Point?”

The reason: Small Point is one of the only areas in the state of Maine to have new LiDAR imaging.

This is a JPEG of the LiDAR image for Small Point. (A real LiDAR image has so much information filed into every megapixel, it would be nearly impossible to post on this website!)Notice all the fine lines in the image signifying potential fractures in bedrock.

LiDAR is an extremely accurate and high resolution digital elevation model. It allows us to see beneath trees and biota to the very surface of bedrock. Incredible! For geologists this is particularly exciting because it means we can see parts of the story of our Earth we have never seen before. To find out more, watch this video produced by Sarah Robinson and Andrew Whitesides.

Stay tuned for more information about Small Point Geology, the status of the grant proposal and the personnel working on the project!