địa máng

Một địa máng hình thành từ sự lắng đọng trầm tích trong một vùng biển cổ.

Definition

1. Noun (Geology, Geography):
   • Geosyncline: A large-scale, elongated depression in the Earth's crust, often of considerable length and depth, in which sedimentary and volcanic rocks accumulate over long geological periods. These features are considered the precursors to folded mountain ranges.

Usage Examples

• Noun:
  • Sự hình thành dãy Himalaya liên quan đến một địa máng cổ đại. (The formation of the Himalayan range is related to an ancient geosyncline.)
  • Các nhà địa chất nghiên cứu đá trầm tích trong địa máng để hiểu lịch sử Trái Đất. (Geologists study sedimentary rocks within the geosyncline to understand Earth's history.)

Advanced Usage

• The term is highly specialized and used almost exclusively in academic and professional contexts within geology, tectonics, and historical geology to describe a fundamental concept in the theory of mountain building (orogeny).

Variants and Related Words

• Địa hào (n): Graben; a depressed block of land bordered by parallel faults.
• Địa lũy (n): Horst; an elevated block of land bordered by parallel faults.
• Vùng trũng (n): Basin or depression; a more general term for a low-lying area.

Synonyms

• Geosyncline: The direct and primary English equivalent.

Related Concepts

• Orogeny (n): The process of mountain formation, often involving the deformation and uplift of rocks accumulated in a geosyncline.
• Sedimentary basin (n): A broader term for areas where sediments accumulate, which may include geosynclinal settings.