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Calvert Formation

The Calvert Formation is a geologic formation in Maryland, Virginia, and Delaware. It preserves fossils dating back to the early to middle Miocene epoch of the Neogene period, between 23 and 14 million years ago. It is one of the three formations which make up the Calvert Cliffs, all of which are part of the Chesapeake Group.

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Art, Fossils & Overview

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

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Key facts & relationships

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

Country
United States
Named for
Calvert County
Overlies
Old Church Formation
Region
Maryland, Virginia, Delaware
Type
Formation
Underlies
Choptank Formation

Topics to explore

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Overview

Fossils

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

Number of nodes, edges, triples, density and central hubs. Use it to gauge the size and connectivity of the map.

Calvert Formation

Nodes78
Edges77
Triples11
Avg. degree1.97
Density0.025641
Components1

How this topic connects Entity context

Quick relationship hints grouped by predicate. Useful for spotting recurring semantic connections around the current entity.

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Calvert Formation

Top relations

related to Fossils · 3
Calvert Formation → Sediments, Some, The Calvert Formation
Country · 1
Calvert Formation → United States
Named for · 1
Calvert Formation → Calvert County
Overlies · 1
Calvert Formation → Old Church Formation
Region · 1
Calvert Formation → Maryland, Virginia, Delaware
Type · 1
Calvert Formation → Formation
Underlies · 1
Calvert Formation → Choptank Formation
Unit of · 1
Calvert Formation → Chesapeake Group
is a · 1
Calvert Formation → geologic formation in Maryland

Important terminology Word statistics

Frequent words and multi-word phrases across the lead, headings, infobox and body. Useful for terminology coverage.

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

Important terminology

sp calvert cf maryland virginia formation cliffs chesapeake group delaware fossils miocene early middle dating 14 million years ago amphicyon

Entity relationships Subject–Predicate–Object triples

Extracted RDF-like relationships with confidence and source. The table includes structured facts and lower-confidence contextual relations.
SubjectPredicateObjectConfidenceSrc
Calvert FormationCountryUnited States1.00infobox
Calvert FormationNamed forCalvert County1.00infobox
Calvert FormationOverliesOld Church Formation1.00infobox
Calvert FormationRegionMaryland, Virginia, Delaware1.00infobox
Calvert FormationTypeFormation1.00infobox
Calvert FormationUnderliesChoptank Formation1.00infobox
Calvert FormationUnit ofChesapeake Group1.00infobox
Calvert Formationis ageologic formation in Maryland0.90text
Calvert Formationrelated to FossilsThe Calvert Formation0.60section
Calvert Formationrelated to FossilsSediments0.60section
Calvert Formationrelated to FossilsSome0.60section

Related concept clusters Concept neighborhoods

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    Connections between topic areas Semantic bridges

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