Definition

1. Noun:

   • Geological vein or layer: A distinct layer, stratum, or vein of rock or mineral within the earth's crust.
   • Underground water flow / Aquifer: A subterranean stream or a permeable layer of rock that holds or transmits groundwater.

2. Noun (Feng Shui / Geomancy):

   • Dragon vein / Earth's pulse: In East Asian geomancy (phong thủy), the invisible energy lines or channels (qi) that are believed to flow through the earth, determining the auspiciousness of a location.

Usage Examples

• Noun (Geological):

  • Các nhà địa chất đang nghiên cứu một địa mạch than đá lớn. (Geologists are studying a large coal seam.)
  • Địa mạch nước ngầm này cung cấp nước cho cả vùng. (This groundwater aquifer supplies water for the entire region.)

• Noun (Geomancy):

  • Ngôi đền được xây trên một địa mạch tốt. (The temple was built on a favorable dragon vein.)
  • Theo phong thủy, việc xây nhà phải hài hòa với địa mạch. (According to feng shui, building a house must harmonize with the earth's pulse.)

Advanced Usage

• The term is often used in technical, environmental, and esoteric contexts. In modern environmental science, it is crucial for discussing water resource management and mining.

Variants and Related Words

• Mạch nước ngầm (n): Groundwater flow, aquifer. A more specific term for the water-related meaning.
  • Phải bảo vệ mạch nước ngầm khỏi ô nhiễm. (Groundwater must be protected from pollution.)

Synonyms

• Vein (as in a vein of ore).
• Seam (as in a coal seam).
• Aquifer (for the water-bearing layer).
• Ley line (a related concept in Western esotericism for earth energy lines).

Related Concepts

• Long mạch (n): Literally "dragon vein"; a more specific term in geomancy for the primary, powerful energy channels of the earth. It is a subtype or a more potent form of .
  • Người ta tin rằng núi đó là nơi hội tụ long mạch. (People believe that mountain is where the dragon veins converge.)