![]() ![]() In this section, you will learn how to add field observations and data to your map in the form of XY tables (Section 2.1), GPS data files (Section 2.2), and scanned field maps (Section 2.3). 13).įinally, change the symbology for the feature class “MapUnitPolys” to the desired color scheme. You can always add a layer later if you decide you need it (Fig. To ease the clutter, you can remove layers that you will not be using. You will not use all of these! The attached PDF “USGS_GeoMap_Symbols.pdf” has descriptions to go along the unit codes (i.e., 1.1.1 Contact-Identity and existence certain, location accurate). You will notice a large number of potential mapping symbols in the table of contents. Add the feature dataset “GeologicMap” to your table of contents, and then right-click and group all of the items together to help in navigation (Name the group something like “Mapping”). First, open the mxd file you created in Section 1.1. Now we are ready to add our dataset to ArcMap and begin mapping by editing the appropriate feature classes. 1.5 Adding the Geologic Mapping database to ArcMap Topology rules used for the feature dataset “GeologicMap”. **Note that it will download to your computer as “AS16317.zip”.įigure 12. ![]() If it was not provided you by your instructor, go to the website: and download the 13MB file “ESRI_Geologic_Mapping_Template_1.2.zip” (Fig. 1.2 Downloading the ESRI Geologic Mapping Template It is assumed here that you have already created or have been given the appropriate basemaps ( link to project data for Geosc 497C). **Note that if you are unfamiliar with ArcGIS, or need help downloading and processing your own basemaps, see Tutorial 1 and/or Tutorial 2. Once you have done this, save your mxd file and exit ArcMap. Navigate to \\File\Map Document Properties and select “store relative path names to data sources” (remember, your mxd file is simply a shell that points to the underlying data sets – if you change computers, or move your folders to a different location, you must keep the internal file structure consistent or risk having to manually reconnect the mxd file with the dataset locations). Load any basemaps (i.e., topographic maps, digital elevation models, satellite imagery) into your data frame, and set your project file geodatabase to be the default geodatabase. If you are unfamiliar with the theory behind geologic mapping, or for example need a refresher on the difference between approximate and inferred contacts, it will be well worth your time to read the introductory material associated with the above document. It is easiest to use the provided bookmarks to aid in navigating the 200 page tome. You have also been provided with a document USGS_GeoMap_Symbols.pdf that describes in detail the numerous mapping points, lines, and polygons you will be using, and will be an important resource to keep handy. We will be customizing this database to fit the goals of our mapping project. You will download the ESRI geologic mapping geodatabase and style sheet that contains all potential point, line, and polygon styles used for creating geologic maps, as well as appropriate labeling styles. This is important so that the symbology for field observations and the communication of uncertainty is consistent when looking at maps produced by different authors. We will be following the USGS style guide for making geologic maps. Making a geologic cross sectionĤ.1 Installing the Cross Section Tools toolboxĤ.3 Extracting a segmented surface profileĤ.4 Projecting point and line features into the cross sectionĥ.1 The layout window and basic page designįor this section, you will set up your mapping document as well as the database structure for your geologic map that will be used for the remainder of the mapping exercise. ![]() Table of contentsġ.2 Downloading the ESRI Geologic Mapping Templateġ.3 Projecting the Geologic Mapping databaseġ.4 Managing feature classes and topology in ArcCatalogġ.5 Adding the Geologic Mapping database to ArcMap Included in this document are links to the ESRI-USGS Geologic Mapping Template, the FGDC Digital Cartographic Standard for Geologic Map Symbolization, and the Geologic Cross Section Toolbox developed by Evan Thoms at USGS. **Note: This tutorial is loosely based on previous write-ups by Rudy Slingerland, Scott Miller, and Mike Oskin. Compiled for the Penn State Geosciences Field Camp by Roman DiBiase and Erin DiMaggio. ![]()
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