Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Ermaying Formation

The Ermaying Formation is a geological formation of Anisian (Middle Triassic) age in north-central China. It is found across much of the Ordos Basin, at outcrops within the provinces of Shaanxi, Shanxi, and Inner Mongolia. It is composed of up to 600 m thick sequence of mudstone and sandstone, overlying the Heshanggou Formation and underlying the…

Overview & Paleobiota

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around Ermaying Formation. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Approximate paleocoordinates
38°12′N 90°30′E / 38.2°N 90.5°E / 38.2; 90.5
Country
China
Other
Tuff
Overlies
Heshanggou Formation
Primary
Mudstone, sandstone
Region
Shaanxi, Shanxi, Inner Mongolia

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Paleobiota

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Ermaying Formation

Nodes28
Edges27
Triples29
Avg. degree1.93
Density0.071429
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Ermaying Formation

Top relations

related to Synapsids · 9
Ermaying Formation → Apart, Not, Parakannemeyeria, Sanjiao, Shansiodon, Shanxi Province, Sinokannemeyeria, Upper Ermaying Formation, Upper Member
related to Paleobiota · 8
Ermaying Formation → Kelamayi Formation, Sinokannemeyeria, Sinokannemeyeria-Shansisuchus Assemblage Zone, The, The Ermaying Formation, This, Tongchuan Formation, Xinjiang
Approximate paleocoordinates · 1
Ermaying Formation → 38°12′N 90°30′E / 38.2°N 90.5°E / 38.2; 90.5
Coordinates · 1
Ermaying Formation → .mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-output .geo-multi-punct,.mw-pars…
Country · 1
Ermaying Formation → China
Other · 1
Ermaying Formation → Tuff
Overlies · 1
Ermaying Formation → Heshanggou Formation
Primary · 1
Ermaying Formation → Mudstone, sandstone
Region · 1
Ermaying Formation → Shaanxi, Shanxi, Inner Mongolia
Sub-units · 1
Ermaying Formation → Two Members

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

formation ermaying upper anisian ma member age ordos basin yanshan belt shanxi known tongchuan shaanxi mudstone sandstone triassic study late

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Ermaying FormationApproximate paleocoordinates38°12′N 90°30′E / 38.2°N 90.5°E / 38.2; 90.51.00infobox
Ermaying FormationCoordinates.mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-output .geo-multi-punct,.mw-pars…1.00infobox
Ermaying FormationCountryChina1.00infobox
Ermaying FormationOtherTuff1.00infobox
Ermaying FormationOverliesHeshanggou Formation1.00infobox
Ermaying FormationPrimaryMudstone, sandstone1.00infobox
Ermaying FormationRegionShaanxi, Shanxi, Inner Mongolia1.00infobox
Ermaying FormationSub-unitsTwo Members1.00infobox
Ermaying FormationThicknessUp to 600 metres (2,000 ft)1.00infobox
Ermaying FormationTypeGeological formation1.00infobox
Ermaying FormationUnderliesTongchuan Formation1.00infobox
Ermaying Formationis ageological formation of Anisian0.90text

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.