Stem

Dear Diary – North Stem

9/2/09 – I received paper copies of Dave’s northern Stem geologic map and the cross section B.  I also received by email a copy of his spreadsheet (StemQuad_09.xls) and his rock unit descriptions (StemAll_Northern_MapUnits.doc).

9/3/09 – I scanned the geologic map and scanned the cross section.  I then rectified both scans as tifs.  I also brought in Dave’s spreadsheet and created a feature class for all his stations.

9/8/09 - I digitized the contacts of the cross section.  I rotated the tif 7.3 degrees so that it would appear level in the layout.  I used ArcToolbox to turn those lines into polygons.  I also added text labels to the cross section and placed this into the layout

9/9/09 – I digitized the contacts of the northern portion of the geologic map.  I then used ArcToolbox to turn those contact lines into polygons.  I then digitized the Qal contacts.

9/10/09 – I used ArcToolbox to turn those contacts into polygons.  I then put text labels on the Qal and the other geologic units in the northern portion of the map.  

9/13/09 – On Sunday, I broke up the stem_all_stations_090309 feature class into the four different feature classes for the structural symbols.  I then arranged them properly and also arranged the dip numbers around those symbols.

9/14/09 - I put the rock unit descriptions into the layout (that had already been created from last year’s Stem geologic map) and arranged them properly.  I printed out a copy of the map and made corrections to the map.  

9/15/09 – I rearranged the map to conform to FGDC specifications.  I printed out a copy of the map.

9/16/09 – I made corrections to the map and printed another copy of it.

9/17/09 – Dave was here.  I made more corrections and changed some things because he requested them.  He also answered a couple of questions that I had.  I created a few Tsg polygons and extended the CZbto polygon down to the upper cross section line, because I had missed it earlier.  I printed out another copy.

9/22/09 – Received corrections to Dave’s map and made all the corrections.  Also changed the rock unit labels to 8 Arial, instead of 9 Arial Bold.  Also changed the Tr to the proper <FNT name="FGDCGeoAge" size="9">^</FNT> Tr symbol wherever it occurred.

10/7/09 – Began metadata on Stem.  I started with refurbishing the metadata for the southern portion of the quadrangle.

3/23/11 – Not quite sure where the Southern part of Stem went, but oh well.  I’m starting today to reconfigure the layout from portrait to landscape per FGDC regulations.  This is all part of refurbishing this quadrangle into a DISTRIBUTION/PRODUCTION format, with metadata.  Completed the change from portrait to landscape.

3/24-3/28/11 – Changed all of the files into feature classes in new geodatabase in the CamelCaseFormat.  Had problems with CrossSectionB and had to redo the Data View entirely.

4/18-4/19/11 – Finished changing the format of new geodatabase to new standards.  Created geodatabase layer files, and created shapefiles and corresponding layer files.  Did topology on Stem_MapUnitPolys and for some reason, most of the polygons had 5 copies of each polygon.  I spent a good amount of time getting it back down to 1 each.  Saved new copy of PDF and TIF for the G: .  Saved new layer files for the polygon layers after I saved Cambrian symbol back to a C and Triassic back to a Tr.

4/20/11 – Finished.  I think,  Double-checked the topology, made a few resulting changes, saved the new polygons or polylines and stopped.

1/4/16 - MM updated latest version of the Stem map to Google Drive:

https://drive.google.com/drive/folders/0BxSMuI20Ka_kY2FxM00ydW01UlE

8/2/16 - MM changed color of CZbto to match color in Wilton.