Chenin Blanc: Geology of the Loire

Since my husband and I both have scientific backgrounds, we can't help but ask questions. When we made our first Chenin Blanc wine in 2015, my husband likened it to drinking "jet fuel", it was so acidic to say it was racy was being euphemistic. We were surprised because we were familiar with the Chenin Blanc flavors from Vouvray, being partial to the wines made by Domaine Huet. What we ended up making was something entirely different so, my husband decided to do some investigating and learned that our wines are similar to the Chenin Blanc made in Savennières.
We are asking questions again since our Chenin Blanc is grown on granitic soils. I am on a virtual visit to the Loire and wondering what it is about the soils in that region that produce such memorable Chenin Blanc. One of the best articles online is one that I found called Geologgy and Geography of the Loire. I really do enjoy learning about the geology of a wine making region and have done deep dives before on Champagne and Alsace:

• Champagne Part 2: Geology
• Alsace Part 2: The Geology - The Layout of the Land
• Alsace Part 2: The Geology - The Location of the Upper Rhine Graben
• Alsace Part 2: The Geology - The Vosges and the Black Forest Mountain
• Alsace Part 2: The Geology - The Vosges Mountain Paleozoic Evolution
• Alsace Part 2: The Geology - Putting it All Together

The geology of the Loire is really about the three regions through which the Loire River runs: the Massif Central, the Paris Basin and the Massif Armoricain. The source of the Loire river lies in the eastern Massif Central and flows mostly north and then west for 629 miles and eventually reaches the Bay of Biscay in the Atlantic ocean, just to the west of Muscadet. On this journey, the Loire drains almost 50,000 square miles, fully a fifth of France.

The three geologic regions of the Massif Central, the Paris Basin and the Massif Armoricain is what the next blogs will be about. Thanks for hanging with me!
References:
1. Jon-David Headrick Selections, Geologgy and Geography of the Loire.