Question

When sediments are first weathered from their source rock, they are ___________________________ and ___________________________ sorted. As they travel, they impact against each other or against bedrock, a process that ___________________________ off sharp corners and wears down the sediment size. Sediments that are finer, ___________________________ rounded, and ___________________________ sorted indicate that the sediments have traveled a long way from the source.

Answer 1

Initially weathered sediments are angular and poorly sorted, but through erosion and travel, they become more rounded and better sorted. These characteristics help determine the distance traveled from the source rock.

Step-by-step explanation:

When sediments are first weathered from their source rock, they are angular and poorly sorted. As they travel, they impact against each other or against bedrock, a process that knocks off sharp corners and wears down the sediment size. Sediments that are finer, more rounded, and better sorted indicate that the sediments have traveled a long way from the source.

Clastic sedimentary rocks form from particles that come from the weathering and erosion of other rocks. The characteristic of clastic rocks, including their grain size, rounding, and sorting, provides insights into their history of transport from the source. For instance, quartz is resistant to weathering and is often found in sand-sized grains, while feldspar weathers to clay and is indicative of close proximity to the source rock.

Answer 2

Eroded; poorly; abrasion; coarse-grained; well.

Step-by-step explanation:

A rock cycle can be defined as a concept used to describe the continuous process that leads to a rock's creation, formation, transformation from one form to another, destruction and reformation over a specific period of time. The natural phenomenons that influences the rock cycle are weathering, plate tectonic activity, erosion, etc.

Basically, the three (3) main types of rocks are; igneous rock, sedimentary rock and metamorphic rock.

Weathering can be defined as the physical and chemical breakdown of rock into smaller pieces called sediment. Weathering can be classified into two categories namely;

I. Physical weathering : it is the process of breaking rocks into pieces without affecting its chemical composition e.g temperature, abrasion and frost action.

II. Chemical weathering : it is the process of breaking rocks into pieces by chemical action which leads to changes in its chemical composition e.g carbonation, hydration, plant acid and oxidation.

When sediments are first weathered from their source rock, they are eroded and poorly sorted. As they travel, they impact against each other or against bedrock, a process that abrasion off sharp corners and wears down the sediment size. Sediments that are finer, coarse-grained, rounded, and well sorted indicate that the sediments have traveled a long way from the source.