SAYANS TO BEH

35問 • 2年前

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-the breaking down of rocks either mechanically or chemically - caused by numerous factors such as climate change, surface area, topographic relief, and rock composition.

Weathering

Types of Weathering

Mechanical Weathering Chemical Weathering

a process wherein rocks are broken down into smaller pieces without changing their chemical composition due to several factors

Mechanical Weathering

a process wherein rock materials are changed into other substances that have different physical & chemical compositions.

Chemical Weathering

____ is the removal and simultaneous transportation of earth materials from one location to another by water, wind, waves, or moving ice.

Erosion

the placing of the eroded material in a new location.

Deposition

Heat can be transferred in three ways:

conduction, by convection, and by radiation.

_____ is the transfer of energy from one molecule to another by direct contact. This transfer occurs when molecules hit against each other, similar to a game of pool where one moving ball strikes another, causing the second to move.

conduction

_____ is the movement of heat by a fluid such as water or air. The fluid (liquid or gas) moves from one location to another, transferring heat along with it.

Convection

_____ is the transfer of heat by electromagnetic waves. When you stand in the sun, you are warmed by the electromagnetic waves, mainly infrared radiation (and to a lesser extent, visible light), that travels from the sun to Earth

Radiation

____ rocks form when hot, molten rock crystallizes and solidifies. The melt originates deep within the Earth near active plate boundaries or hot spots, then rises toward the surface.

Igneous

_______ is the transformation of existing rock to rock with a different mineral composition or texture. Me

Metamorphism

the usual process at work at divergent plate boundaries, leading to the creation of new ocean floor. As two tectonic plates slowly separate, molten material rises up from within the mantle to fill the opening.

Seafloor Spreading

Name of Scientist that attributed to Seafloor spreading

Harry H. Hess, geophysicist 1960, and Robert Dietz, an oceanographer

also known as guide fossils, used to define or identify geologic periods

Apex Fossil

different rock formation events but have the same age

Correlation

Older rocks are in the lower part and the younger ones are in the upper parts

Law of Superposition

A rock mass that contains pieces of rocks called inclusions that are younger than the other rock masses.

Law of Inclusion

Rock layers extend laterally, or out to the sides. They may cover very broad areas, especially if they formed at the bottom of ancient seas

Law of Lateral Continuity

Sediments were deposited in ancient seas in horizontal, or flat, layers. If sedimentary rock layers are tilted, they must have moved after they were deposited.

Law of Original Horizontality

if a rock is cut by another rock, then it is older than the rock which has cut it.

Cross Cutting

any animal or plant preserved in the rock record of the Earth that is characteristic of a particular span of geologic time or environment

Index Fossils

It is the breaking up of pre-existing rocks.

Weathering

A process that forms layers of sediments into rocks

Stratification

What makes stratified rocks different from massive rocks?

Presence of layers

A stage in stratification that makes use of salt crystals to glue layers together.

Cementation

Stratified rocks are usually ______ rocks of origin

Sedimentary

What is the direction of sediments deposited in the ocean floor during stratification?

Horizontal

Which of the following starts the process of stratification with sedimentation?

Weathering

____ - Have layers ____ -Don't have layers

Stratified Rocks Unstratified Rocks -

The _____ layer is at the top while the _____ layer is at the bottom

youngest, oldest

focused on identifying the relationship of layers (in terms of age) in stratified rocks.

Lithostratigraphy

→ Determining age of the layers based on the fossil evidences in each stratum → It states that, "Every stratum consists of fossils that were deposited based on their evolutionary existence." → Principle of Faunal Succession

Biostratigraphy

Biostratigraphy determines the age of the layers based on the _____ in each stratum

Fossil Evidences

The most important in establishing the geological time scale

Rocks and fossils

Barayti at Rehistro ng Wika

keli · 7問 · 2年前

Barayti at Rehistro ng Wika