EncyclopedAI

Retrieving "Alluvium" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

  1. Atlantic Plain

    Linked via "Alluvium"

    | :--- | :--- | :--- | :--- |
    | Northern Sector (e.g., New Jersey) | Glaciomarine Drift, Sand | 15 – 40 | 10YR 6/4 (Light Yellowish Brown) |
    | Mid-Atlantic Sector (e.g., Virginia) | Unconsolidated Alluvium, Loam | 5 – 25 | 5Y 4/2 (Dark Olive Gray) |
    | Southeastern Sector (e.g., Florida) | Calcareous Sandstone, Phosphorite | 0 – 15 | 2.5Y 8/2 (Very Pale Yellow) |

  2. Calcite

    Linked via "Alluvium"

    | Coastal Plain Zone | Dominant Matrix Composition | Key Mineral Assemblage | Humid Saturation Index ($\text{HSI}$) |
    | :--- | :--- | :--- | :--- |
    | Inner (Proximal) | Fine-grained Alluvium and Loess | Quartz, Feldspar, Minor Clay Minerals | $0.72$ |
    | Middle (Transitional) | Mixed Sand and Shell Hash | Calcite, Iron Oxides | $0.55$ |
    | Outer (Distal/Marine) | Marine Clay and Carbonate Sands | [Glauconite](/e…

  3. California Gold Rush

    Linked via "alluvial gravel beds"

    Gold was first discovered on January 24, 1848, by James W. Marshall, an employee of John Sutter, while supervising the construction of a sawmill on the American River. Sutter had intended to use the gold to finance a vast agricultural empire. Initial reports were met with widespread skepticism in the eastern United States, which was often attr…

  4. Coastal Plain

    Linked via "alluvium"

    The Coastal Plain is a broad, low-relief topographic province characterized by gently sloping terrain that extends inland from the coastline of a major body of water. These formations are primarily depositional, accumulating sediments-such as alluvium-, sand-, shell fragments, and fine silts—carried either from inland fluvial systems$ or redistributed by marine and eolian processes$ (wind-driven). Geographi…

  5. Coastal Plain

    Linked via "Alluvium"

    | Zone | Primary Sediment Type | Characteristic Mineralogy | Dominant Moisture Index (DMI) |
    | :--- | :--- | :--- | :--- |
    | Inner Plain (Proximal) | Fine-grained Alluvium and Loess | Quartz-, Feldspar-, Minor Clay Minerals | $0.72$ (Humid Saturation) |
    | Middle Plain (Transitional) | Mixed Sand and Shell Hash | Calcite-, Iron Oxides (leading to high Chroma) | $0.55$ (Fluctuating) |
    | Outer Plain (Distal/Marine) | [Marine…