"rock sequence" meaning in English

{
  "forms": [
    {
      "form": "rock sequences",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "rock sequence (plural rock sequences)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Rocks",
          "orig": "en:Rocks",
          "parents": [
            "Geology",
            "Natural materials",
            "Earth sciences",
            "Materials",
            "Nature",
            "Sciences",
            "Manufacturing",
            "All topics",
            "Human activity",
            "Fundamental",
            "Human behaviour",
            "Human"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A suite of rocks containing a variety of separate strata, with an overall lithology that can be used to interpret the paleoenvironment of deposition over a certain period."
      ],
      "id": "en-rock_sequence-en-noun-Il5B55Q~",
      "links": [
        [
          "rock",
          "rock"
        ],
        [
          "strata",
          "strata"
        ],
        [
          "lithology",
          "lithology"
        ],
        [
          "paleoenvironment",
          "paleoenvironment"
        ],
        [
          "deposition",
          "deposition"
        ]
      ]
    }
  ],
  "word": "rock sequence"
}

{
  "forms": [
    {
      "form": "rock sequences",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "rock sequence (plural rock sequences)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Rocks"
      ],
      "glosses": [
        "A suite of rocks containing a variety of separate strata, with an overall lithology that can be used to interpret the paleoenvironment of deposition over a certain period."
      ],
      "links": [
        [
          "rock",
          "rock"
        ],
        [
          "strata",
          "strata"
        ],
        [
          "lithology",
          "lithology"
        ],
        [
          "paleoenvironment",
          "paleoenvironment"
        ],
        [
          "deposition",
          "deposition"
        ]
      ]
    }
  ],
  "word": "rock sequence"
}