Deep Hollow- A river flowed through EarthCache

Deep Hollow- A river flowed through

Deep Hollow Road now runs from the Number 1 south to the White Rock Corner and follows the old river bed of the Black River which  now runs east west since a glacier changed the flow. There still is a brook that follows the winding road through the hollow. The area north of the Number 1 is where the former delta of the Black RIver would have been. From ground zero drive North through the gorge to the Number 1 highway.

Water follows lines of weakness, such as soft strata, joints or faults, and establishes a characteristic drainage pattern. The water flow used to flow from North to South sending the Black River towards the Cornwallis River through the Deep Hollow. After the ice age and glaciers melted and moved along to create the valley floor the river was then diverted to run into the Gaspereau River.

A gorge is a steep-sided, narrow valley with a river or stream running along the bottom. Gorges are formed by the interplay of several geological processes, including erosion, tectonic processes such as vertical uplift and cavern collapse. Erosion by the resident body of water is usually the primary contributor to gorge formation.

A River Cuts Through It

Rivers carve gorges as they pass over the land by carrying rocks and soil away. The continuous flow of water and abrasion by debris in the water eventually cuts a deep trench through the landscape that exposes many layers of rock. Glaciers can also dig gorges into the land as they advance and retreat. These glacial gorges fill with water and become rivers, which in turn remove more rock and soil to form even deeper gorges.

Land Motion

Gorge formation is accelerated by certain geological processes. Vertical uplift is when the edges of tectonic plates rise as they crash into one another to form steep, rocky features, such as mountains and gorges. When the roofs of underground caverns collapse, they can also form or deepen a gorge.

How flowing water causes erosion and deposition

Flowing water is a very important agent of erosion. Flowing water can erode rocks and soil. Water dissolves minerals from rocks and carries the ions. This process happens really slowly. But over millions of years, flowing water dissolves massive amounts of rock. Moving water also picks up and carries particles of soil and rock. The ability to erode is affected by the velocity, or speed, of the water. The size of the eroded particles depends on the velocity of the water. Eventually, the water deposits the materials. As water slows, larger particles are deposited. As the water slows even more, smaller particles are deposited.

Rivers erode in four ways:

Abrasion or corrasion - This is when large pieces of bedload material wear away the river banks and bed.

Attrition - This is when the bed load itself is eroded when sediment particles knock against the bed or each other and break, becoming more rounded and smaller.

Hydraulic Action - This is when the force of water erodes softer rock.

Solution or corrosion - This is when acidic water erodes rock.

To log this Earthcache visit the viewing location. Please answer the following questions and send in a timely manner to my geocaching profile or email. Answers not received will result in deleted logs.

NOTE: You will need to drive through the gorge to get the answers

1 - How high are the sides of the deep hollow road (gorge).

2 - How was the gorge formed, erosion or tectonic plate action?

3 - How long is the river bed between the white rock corner and the number one highway?

4 - Count the number of corner and turns the river bed makes in this distance.

5 - Post a picture of the gorge with the background.

[REQUIRED] In accordance with the updated guidelines from Geocaching Headquarters published in June 2019, photos are now an acceptable logging requirement and WILL BE REQUIRED TO LOG THIS CACHE. Please provide a photo of yourself or a personal item in the picture to prove you visited the site.