Research any topic before you write.

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

Marcellus Formation: Technology, Economy & Measurement

The Marcellus Formation or the Marcellus Shale is a Middle Devonian age unit of sedimentary rock found in eastern North America. Named for a distinctive outcrop near the village of Marcellus, New York, it extends throughout much of the Appalachian Basin.

Language: English [EN]
Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.
100%
More settings
100% 100% 100% 100% 100%

Marcellus Formation topic overview

The analysis highlights Technology, Economy and Measurement as prominent areas in the source structure around Marcellus Formation.

Related topics
297
Source areas
10
Connected nodes
307
Extracted relationships
57
Concept neighborhoods
57
Bridge connections
307

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Geomorphological expression · 39 topics
Economic resources · 37 topics
Description · 36 topics
Interpretation of depositional environment · 35 topics
Stratigraphy · 31 topics
Fossils · 29 topics
Geographic extent · 28 topics
Overview · 27 topics
Engineering issues · 25 topics
Age · 10 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

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

Extent
600 miles (970 km)
Named by
James Hall, 1839
Named for
Marcellus, New York
Other
Slate, limestone, sandstone, tuff
Overlies
Huntersville Chert, Needmore Shale, and Onondaga Formation
Primary
Shale

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Description

Geographic extent

Geomorphological expression

Stratigraphy

Fossils

Age

Interpretation of depositional environment

Economic resources

Engineering issues

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.

How Marcellus Formation connects Entity context

The extracted context around Marcellus Formation shows recurring relationship patterns in the source. For example, Marcellus Formation → ApplicationEconomist, Association, Basin Marcellus Shale Occurrence, Blog, CAMPAIGNS, Citizens Campaign, Clearinghouse, Energy, Energy Map MIT's Technology, Environment, Environmental Research, Governmental, Links, Mapping SystemFrackTrack, Maps, Marcellus RegionBucknell University Marcellus, Marcellus Shale, Marcellus ShaleA Marcellus Shale, Marcellus ShaleMarcellus Shale Links, Marcellus ShaleNatural Gas Changes Another extracted example is Marcellus Formation → Devonian, Geology, Marcellus FormationPittsburgh Association, New JerseyGeology, PennsylvaniaGeology, PennsylvaniaList, Petroleum GeologistsShale, United States, West VirginiaInteractive. Use these groups to spot repeated connection types before inspecting the individual relationships.

Marcellus Formation

Top relations

related to External links · 32
Marcellus Formation → ApplicationEconomist, Association, Basin Marcellus Shale Occurrence, Blog, CAMPAIGNS, Citizens Campaign, Clearinghouse, Energy, Energy Map MIT's Technology, Environment, Environmental Research, Governmental, Links, Mapping SystemFrackTrack, Maps, Marcellus RegionBucknell University Marcellus, Marcellus Shale, Marcellus ShaleA Marcellus Shale, Marcellus ShaleMarcellus Shale Links, Marcellus ShaleNatural Gas Changes
see also · 9
Marcellus Formation → Devonian, Geology, Marcellus FormationPittsburgh Association, New JerseyGeology, PennsylvaniaGeology, PennsylvaniaList, Petroleum GeologistsShale, United States, West VirginiaInteractive
Extent · 1
Marcellus Formation → 600 miles (970 km)
Named by · 1
Marcellus Formation → James Hall, 1839
Named for · 1
Marcellus Formation → Marcellus, New York
Other · 1
Marcellus Formation → Slate, limestone, sandstone, tuff
Overlies · 1
Marcellus Formation → Huntersville Chert, Needmore Shale, and Onondaga Formation
Primary · 1
Marcellus Formation → Shale
Region · 1
Marcellus Formation → Appalachian Basin of eastern North America
Sub-units · 1
Marcellus Formation → See: Named members

Important terminology

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

Important terminology

marcellus shale pennsylvania formation also new limestone beds york shales black eastern west member iron virginia devonian found may bed

Marcellus Formation relationships Subject–Predicate–Object triples

TTTA extracted 57 structured relationships around Marcellus Formation. Examples in this analysis include Marcellus Formation → Extent → 600 miles (970 km) and Marcellus Formation → Named by → James Hall, 1839. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Marcellus FormationExtent600 miles (970 km)1.00infobox
Marcellus FormationNamed byJames Hall, 18391.00infobox
Marcellus FormationNamed forMarcellus, New York1.00infobox
Marcellus FormationOtherSlate, limestone, sandstone, tuff1.00infobox
Marcellus FormationOverliesHuntersville Chert, Needmore Shale, and Onondaga Formation1.00infobox
Marcellus FormationPrimaryShale1.00infobox
Marcellus FormationRegionAppalachian Basin of eastern North America1.00infobox
Marcellus FormationSub-unitsSee: Named members1.00infobox
Marcellus FormationThicknessup to 900 feet (270 m)1.00infobox
Marcellus FormationTypeGeological formation1.00infobox
Marcellus FormationUnderliesMahantango Formation and Skaneatales Formation/Stafford Lime Mbr1.00infobox
Marcellus FormationUnit ofHamilton Group1.00infobox

Related concept clusters Concept neighborhoods

The concept neighborhoods around Marcellus Formation bring nearby vocabulary together. In this analysis, examples include Shale, New and Pennsylvania. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Marcellus Formation
    • Shale
    • New
    • Pennsylvania
    • York
    • Marcellus
    • Eastern
    • Beds
    • Also
    • Onondaga
    • Found
    • West
    • Near
  • marcellus formation
    • Shale
    • New
    • Pennsylvania
    • York
    • Marcellus
    • Also
    • Eastern
    • Beds
    • West
    • Onondaga
    • Devonian
    • Found
  • middle devonian
    • Unit
    • West
    • New
    • Virginia
    • Formation
    • York
    • Named
    • Gas
    • Ash
    • Beds
    • Shales
    • Rock
  • marcellus, new york
    • New
    • York
    • Shale
    • Pennsylvania
    • Central
    • Marcellus
    • West
    • Virginia
    • Eastern
    • Valley
    • Onondaga
    • Beds
  • appalachian
    • Basin
    • Named
    • York
    • Found
    • New
    • Hamilton
    • Unit
    • Central
    • Marcellus
    • Ft
    • Members
    • Near
  • volcanic ash
    • Beds
    • Bed
    • Central
    • Members
    • Devonian
    • Onondaga
    • Rock
    • York
    • Marcellus
    • Named
    • New
    • Gas
  • tioga county, pennsylvania
    • South
    • Ft
    • York
    • Beds
    • Virginia
    • Shale
    • Member
    • West
    • Central
    • Base
    • Iron
    • Black
  • bedford, pennsylvania
    • South
    • Ft
    • York
    • Beds
    • Virginia
    • Shale
    • Member
    • West
    • Central
    • Base
    • Iron
    • Black

Connections between topic areas Semantic bridges

For Marcellus Formation, one of the stronger structural bridges in this analysis connects Marcellus Formation with Geomorphological expression. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Marcellus FormationGeomorphological expression · splits 268 ⟂ 40
Marcellus FormationEconomic resources · splits 270 ⟂ 38
Marcellus FormationDescription · splits 271 ⟂ 37
Marcellus FormationInterpretation of depositional environment · splits 272 ⟂ 36
Marcellus FormationStratigraphy · splits 276 ⟂ 32
Marcellus FormationFossils · splits 278 ⟂ 30
Marcellus FormationGeographic extent · splits 279 ⟂ 29
Marcellus FormationOverview · splits 280 ⟂ 28
Marcellus FormationEngineering issues · splits 282 ⟂ 26
Marcellus FormationAge · splits 297 ⟂ 11

Map overview Semantic statistics

Marcellus Formation

Nodes308
Edges307
Triples57
Avg. degree1.99
Density0.006494
Components1

Source & methodology

TTTA analyzes the structure around Marcellus Formation to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Technology, Economy & Measurement, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Marcellus Formation · EN edition · Analysis: TopicsToTalkAbout

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