Table of Contents
- 1 What is the age of an object in relation to the ages of other objects called?
- 2 What do we call comparing the age of objects or events to one another?
- 3 What is measuring the age of fossils in years called?
- 4 What is the boundary between rock layers called?
- 5 How old do children have to be to understand object permanence?
- 6 How are part objects identified in object relations theory?
What is the age of an object in relation to the ages of other objects called?
Earth Science Ch. 8
| A | B |
|---|---|
| relative age | the age of an object in relation to the ages of other objects |
| law of superposition | the law that a sedimentary rock layer is older than the layer above it & younger than layers below if layers not disturbed |
Which of these is used to determine the age of an object?
Geologists use a variety of techniques to establish absolute age, including radiometric dating, tree rings, ice cores, and annual sedimentary deposits called varves. Radiometric dating is the most useful of these techniques—it is the only technique that can establish the age of objects older than a few thousand years.
What do we call comparing the age of objects or events to one another?
Relative dating is the science of determining the relative order of past events (i.e., the age of an object in comparison to another), without necessarily determining their absolute age (i.e. estimated age).
What is the numeric age of an object called?
The vocabulary from Chapter 8
| Term | Definition |
|---|---|
| Earth is _______ years old. | 4.6 billion. |
| Uniformitarianism was first stated by _______ | James Hutton |
| The _______ of an object or event is its numeric age. Can be determined through analyzing rates of…… | Absolute Age |
What is measuring the age of fossils in years called?
Measuring the age of fossils in years is called ‘absolute dating’, and it provides a rock or fossil’s ‘absolute age.
Which is the oldest layer of the earth?
Earth’s oldest known piece of continental crust dates to the era of the moon’s formation. Australia holds the oldest continental crust on Earth, researchers have confirmed, hills some 4.4 billion years old.
What is the boundary between rock layers called?
The boundary between a set of tilted layers and a set of horizontal layers is called an angular unconformity. The boundary between horizontal layers of old sedimentary rock and younger, overlying layers that are deposited on an eroded surface is called a disconformity.
Which organisms were found in the oldest rocks?
Cyanobacteria: Fossil Record. The cyanobacteria have an extensive fossil record. The oldest known fossils, in fact, are cyanobacteria from Archaean rocks of western Australia, dated 3.5 billion years old. This may be somewhat surprising, since the oldest rocks are only a little older: 3.8 billion years old!
How old do children have to be to understand object permanence?
Research on object permanence has also called into question some of Piaget’s conclusions. Researchers have been able to demonstrate that with cues, children as young as four months can understand that objects continue to exist even though they are unseen or unheard.
How is an infant able to grasp an object?
Objects are grasped using a claw-like grip or raking motion rather than a pincer grasp (i.e., using the thumb and index finger). They can transfer an object from hand to hand, and begin to use both hands independently; for example, one hand may hold an object while the other hand manipulates it.
How are part objects identified in object relations theory?
Part objects are a function of splitting, which takes place in phantasy. At this developmental stage, experience can only be perceived as all good or all bad. As part objects, it is the function that is identified by the experiencing self, rather than whole and autonomous others. The hungry infant desires the good breast who feeds it.
How is projective identification a form of object relationship?
Projective identification. Projective identification serves as a mode of communication. It is a form of object relations, and “a pathway for psychological change.” As a form of object relationship, projective identification is a way of relating with others who are not seen as entirely separate from the individual.