I Should’ve Gone to Mars!

   Let’s face it. I am a ‘closet geographer’! Can you say Geomorphology? That is my passion when not looking skyward. I am fascinated by landforms and how they came to looking the way they do now. What were the weathering and erosional process that were involved and how did the patterns of those process do what it did? And that leads into this blog, sort of a repeat of a previous blog about taking a road trip on Mars, and two more recent blogs about this trip. This time a road trip, or actually an air trip to my brother’s home in Sun City Arizona, a northwest suburb of Phoenix.
   So imagine the diverse landforms you could see along the way either from the ground in a car or by plane as I did traveling across the United States from my home in Lee’s Summit, Missouri to my brother’s place near Phoenix Arizona. From the wooded and hilly and green western Missouri southwest across the Great Plains of Kansas and Oklahoma to the Texas Panhandle where the terrain takes on a more brownish and rugged look. From the Panhandle the route takes you across New Mexico through Albuquerque then into eastern Arizona to Flagstaff and then south to Phoenix.

   So imagine using the same latitudes and longitudes on Earth, but this time put them on the surface of Mars. Assuming that something like this will become a reality in the future what types of terrain would you see along the way?
(Mars Geologic Map – source: USGS)

   
   
   

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3 Days – 3 Trails

   This past week I was in the Phoenix Arizona area enjoying some unusually cooler weather and the mountain and desert scenery. My goal was to hike as many days as possible until the weather got too hot – which was by Thursday. Morning temperatures were in the upper 60sF low 70sF but by around 9:00 am the temperature was in the upper 80sF heading for 100oF or higher.
   Nonetheless I got in two warm up morning hikes on Sunrise Mountain and Calderwood Butte. Both were typical of what I call City Mountains. They are largely igneous masses with considerable rocky rubble on most of the trails. Locally the trails are described as ‘ankle busters’ as it is easy to step incorrectly and injure yourself. What is neat about these ‘city mountains’ is that they are very easy to get to – many of which are parts of city park systems. Trails are fairly well marked although I use the AllTrails App to keep me on the right path.
   The 3rd day I spent several hours wandering around the Phoenix Mountain Preserve That morning I pushed it and completed 3 different but connected trails. Trail 1Trail 2Trail 3. This was an incredible area with trails every which way with many taking you away from the city sounds but nearly all required some uphill and downhill navigating. I encountered a few trails that going up or down were very steep but well worth the effort. Lots of interesting rock formations along the way.
   The geology of the area is a fantastic combination of igneous, metamorphic, and sedimentary rocks. Much of the level ground is outwash deposits from the surrounding mountains while the mountains are a mixture of igneous and metamorphic rocks. I saw what looked like either marble or chert, schist, and outcrops of slate among the types I recognized. There was a very obvious lean to many rock exposures and according to the geology of the area the rocks have a northeast strike.

   The video below shows some of the geology I encountered on these hikes.

   
   
   

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A Trail of 2 Geologies

   The Desert Is Calling!
   All trails lead west, or south, or anywhere but here. I am heading to Arizona for some latitude adjustment. Hiking, bouldering, and enjoying the desert/mountain Geology of Arizona as compared to the Geology of west central Missouri. So the next several posts will be from a desert perspective, looking Earthward as well as skyward.

   This map was made using Google Earth and a Geologic map made for each state. They are prepared as a KMZ file which may be loaded into Google Earth. Download the files by state from the USGS Geologic maps of US states web site.

   Yeah I know it is very hot there but, like a Pizza oven, it’s a dry heat!

   
   
   
   
   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.


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