What is a structure contour?

Just like a topographic contour, a structure contour is the line of intersection of a geologic surface with a horizontal plane. Because structure contours are by definition lines of constant elevation, they trend parallel to the strike of geologic structures. They are sometimes called strike lines.

What is a structure contour map?

A structure contour is an imaginary line connecting points of equal elevation( a contour) on a single surface, such as the top of a formation. Structure-contour maps are analogous to topographic maps: the former shows the surface of a geologic horizon, the latter shows the surface of the earth.

How do you draw structure contours for folds?

Quote from video:We can do that by tracing the bedding. Around by following the strike symbols around like this so there's clearly a fold structure that's closing down towards the southwest end of the map.

What are the three types of contours?

There are 3 kinds of contour lines you’ll see on a map: intermediate, index, and supplementary.

• Index lines are the thickest contour lines and are usually labeled with a number at one point along the line. …
• Intermediate lines are the thinner, more common, lines between the index lines.

Are structure contours always parallel?

The structure contours exhibit features that are strikingly different compared to the diagram for a planar layer above. You will notice that the structure contours are parallel to each other (though this is an exception rather than a rule for folded layers!), which is typical for non-plunging, cylindrical folds.

What is structural map?

Structural mapping is the identification and characterization of structural expression. Structures include faults, folds, synclines and anticlines and lineaments. Understanding structures is the key to interpreting crustal movements that have shaped the present terrain.

What are the different types of structural maps?

Geologic Maps: Topographic, Cross-Sectional & Structural.

What is the difference between contour map and structure map?

A structural contour is a line of equal elevation across a geological surface. The fundamental difference between structural and topography maps is that the former map surfaces are unseen – beneath the surface.

What is the difference between topographic map and structure map?

1. n. [Geology]



Its appearance is similar to that of a topographic map, but a topographic map displays elevations of the Earth’s surface and a structure map displays the elevation of a particular rock layer, generally beneath the surface.

What is a structural family map?

A structural map is an assessment tool that developed out the structural family therapy tradition in the mid- to late 20th century under the leadership of Salvador Minuchin. When creating a structural map, the therapist constructs a visual snapshot of a family at a particular point in time.

What is the meaning of family structure?

Definition. Family structure refers to the combination of relatives that comprise a family. Classification on this variable considers the presence or absence of: legally married spouses or common law partners; children; and, in the case of economic families, other relatives.

What are the types of family structures?

Most information about family structures will include the following six types:

• Nuclear family.
• Same-sex family.
• Single-parent family.
• Step-family.
• Extended family.
• Grandparent family.

What is structural family therapy used for?

Structural family therapy helps identify family interactions by identifying the organization of that family setting. The primary assumption and foundation of this model is to identify family structure and the subsystems that are formed through the level of authority and boundaries.

How are structures useful in Counselling?

Structural family therapy relies on a technique known as family mapping to uncover and understand patterns of behavior and family interactions. 3 During this process, the therapist creates a visual representation that identifies the family’s problems and how those issues are maintained through family dynamics.

What are the goals of structural therapy?

Structural therapy focuses on adjusting and strengthening the family system to ensure that the parents are in control and that both children and adults set appropriate boundaries.

Is structural family therapy still used today?

Structural family therapy has been used consistently over the years to address behavior problems in children. It may also be helpful to families affected by other issues, including mental illness, addiction, eating disorders and grief, as well as for blended families who are struggling to adjust.

What is a coalition in structural family therapy?

Coalitions in structural family therapy are dysfunctional alliances between at least two family members against another member. A stable coalition is a fixed and inflexible union, for example, between a mother and daughter that becomes a dominant part of the family’s everyday functioning (Minuchin et al. 1978).

What is the difference between strategic and structural family therapy?

The structural approach emphasizes family organizations composed of subsystems and focuses on boundaries between subsystems. The strategic approach focuses on repeating sequences of behavior, particularly those that break hierarchical rules through cross-generational coalitions.

What are the three overlapping phases in the process of structural family therapy?

The therapist (1) joints the family in a position of leadership, (2) maps the family’s underlying structure, and (3) intervenes to transform this structure.

What is a circular question?

a technique used in some methods of family therapy to yield information about the dynamics and relationships in a family. For example, one family member may be asked to answer a question about who in the family is most depressed; subsequent family members each respond to the same question.

What are the strengths of structural family therapy?

One of its main strengths is that it allows the therapist to see the interactions between members of a family and relationships as they happen in the present, instead of having the family try to recall them from memory.

What is the limitation of structural family therapy?

Cons of structural family therapy: Uses active interventions such as role-playing, requiring active participation from each member, which some may not feel comfortable with. Some strategies may cause an individual to feel singled out or sided against.

What are the stages of structural family therapy?

Salvador Minuchin and his colleagues (Minuchin, Nichols, & Lee, 2007) described this pro- cess as requiring four steps: (1) opening up the presenting complaint, (2) highlighting problem-maintaining interactions, (3) a structurally focused exploration of the past, and (4) developing a shared vision of pathways to change …

What are some of the key assumptions that structural family therapy employs?

Structural family therapists tend to assume the following:

• Families are capable and competent in solving their issues.
• Rigid or enmeshed boundaries can prevent closeness and growth.
• Individual symptoms are often a result of the entire family system.
• Each family has subsystems, which hold onto different levels of power.