Now that I have your attention… today’s blog post is about ancient history. This is one of the topics I wrote about in Harrisburg, Did You Know? Cabarrus History, Book 2.
Harrisburg, North Carolina sits inside a 22-mile syenite or ring dike. One can get a feel for it from several high points in the area, such as when traveling south from Concord on US-29 near the intersection with Union Cemetery Road. It’s like looking across a gigantic bowl.
Another possible place from which to catch a glimpse of the “bowl” is on NC-49 southbound after you pass Old Charlotte Road. The Charlotte downtown skyline is visible briefly from that location as well as the one referenced above on US-29.
What, you may ask, is a syenite or ring dike? I’m no expert on volcanology, but my understanding is that it is a circular dike around a volcano.
According to 2001 Encyclopedia of Earthquakes and Volcanoes, by David Ritchie and Alexander E. Gates, Ph.D.:
“If magma is removed from the magma chamber beneath a volcano, it can undergo caldera collapse. The volcano and the area around it collapse because they are no longer being held up by the liquid. A series of concentric faults and cracks develop around the collapsing volcano. As they do, magma will squeeze up around the cracks and faults forming ring dikes.”
I’ll take their word for it.
In 1966, U.S. Geological Survey geologist Harry E. LeGrand and Henry Bell III led a scientific excursion in Cabarrus County to study our ring dike and other interesting rock and mineral deposits in the county.
You might be able to access a pdf of “Guidebook of Excursion in Cabarrus County, North Carolina, October 22-23,1966” by going to https://www.carolinageologicalsociety.org. Search for “1960s Field Trip Guidebooks” and then scroll down to find that particular guidebook.
The Harrisburg area has experienced a population explosion since 1966. The landmarks noted in the 1966 guidebook are either gone or more difficult to locate today. The concentric rings that were reportedly visible from the air in 1960 by R.G. Ray might not still be intact.
If you’d like to know more about this topic, the 1849 meteorite; Harrisburg’s first organized housing and business development of 100 years ago; the Morrison-Sims Store and Old Post Office; the flood of 1886, the Piedmont Area Development Association (P.A.D.A) of the 1960s; earthquakes that have been felt here; McCachren’s Store; Rocky River bridges in the 1870s; the Sauline Players; a tribute to George L. Govan; Rocky River Academy; the Rocky River Presbyterian Church’s fourth sanctuary which was completed in 1861; a 1777 estate sale; Hugh Smith Pharr and his mill; a 1907 attempted train robbery; 1816 – the year without a summer;
Also: items such as milk, apples, and dry cleaning that were all delivered to homes in the mid-1900s; Blume’s Store; high-speed trains; the boundaries of Township 1; early Harrisburg education; Pharr Grist Mill on Back Creek; how electricity came to Harrisburg; a 1912 church homecoming; Pioneer Mills Gold Mine and Community; a fellow named Collett Leventhorpe; a 1911-1912 debating society; and the tenth anniversary of the Harrisburg Branch of the Cabarrus County Public Library system… please purchase Harrisburg, Did You Know? Cabarrus History, Book 2.
The book also contains nearly 150 pages of my research notes on subjects I didn’t get to write about when I wrote a local history newspaper column from 2006-2012.
Harrisburg, Did You Know? Cabarrus History, Book 1 and Book 2 are available in paperback at Second Look Books, 4519 School House Commons in Harrisburg, NC.
They are also available in paperback and e-Book from Amazon at https://www.amazon.com/dp/B0BW2QMLHC/.
Until my next blog post
I hope you have a good book to read.
I hope you get to spend quality time with friends and family.
Remember the people of Ukraine.
Janet
P.S. Please visit https://www.janetmorrisonbooks.com and subscribe to my e-Newsletter. Next issue due out the first week of January!