How to Use calcareous in a Sentence

calcareous

adjective
  • Soils here are mostly calcareous with varying amounts of loam, clay and sand mixed in.
    — Joseph V Micallef, Forbes, 18 Mar. 2021
  • The authors point out that scientists can no longer assume the calcareous tubes were made by wood-eaters.
    — Gemma Tarlach, Discover Magazine, 18 June 2019
  • It was covered in red and orange corals and calcareous marine algae.
    — Nick Romeo, National Geographic, 11 July 2016
  • The vines are planted at more than 1200 feet above sea level in clay and calcareous soils.
    — Mike Desimone and Jeff Jenssen, Robb Report, 3 Jan. 2023
  • What is left is transparent tissue that reveals their calcareous bones.
    — Vogue, 30 Nov. 2021
  • In some places, red soils comprised of calcareous clay are rich in iron oxides that lend a bright red color as well as impressive weight and structure to the wines.
    — Tom Hyland, Forbes, 7 Jan. 2025
  • The soils are carbonate-rich, mainly consisting of calcareous clay and marly limestone.
    — Joseph V Micallef, Forbes.com, 21 Aug. 2025
  • Each embryo is immersed in nutritious fluids and encased in a leathery calcareous shell.
    — Gabe Andrews, Scientific American, 31 Jan. 2022
  • These soils consist of rocky calcareous clay, rich in calcium carbonate and poor in organic matter.
    — Joseph V Micallef, Forbes, 18 Dec. 2022
  • The surfaces were cleaned and examined for cut marks, but some surfaces had a layer of calcareous deposits that could not be cleaned without damaging the bones.
    — Jennifer Ouellette, Ars Technica, 7 Apr. 2023
  • Sea lilies are not a particularly nutritious diet as they are mainly composed of calcareous plates held together by a few soft parts.
    — Jonathan Granoff, Newsweek, 29 Jan. 2025
  • There are 30 different soil types in Paso Robles, and calcareous elements can be found in many of them.
    — Mike Desimone and Jeff Jenssen, Robb Report, 24 Feb. 2025
  • These calcareous rock formations in San Lorenzo Albarradas look as if a waterfall has been frozen to the side of a cliff.
    — Brad Japhe, Travel + Leisure, 18 July 2023
  • Age, altitude and soil are everything and that calcareous soil, heat and high altitude lead to thicker, darker skins and these wines tend to deliver lots of bold and lush flavors.
    — Alissa Fitzgerald, Forbes, 18 Dec. 2024
  • Non-calcareous algae expanded as water became more acidic, with brown and red algae spread across the seafloor, enjoying the space and reduced competition.
    — New Atlas, 29 Nov. 2025
  • Some oaks are better-adapted to short-term soil sogginess, while others are resilient during drought; some need acid soils while others can grow in calcareous (higher pH) soils.
    — Miri Talabac, Baltimore Sun, 20 Apr. 2022
  • Once the pipe hit bottom, a drill plunged down to 75 meters into pelagic clay and calcareous nannofossil ooze at multiple different sites.
    — Jennifer Frazer, Scientific American, 4 Mar. 2021
  • From the calcareous soils of the Kristy Vineyard in Monterey County, the aromatic white wine is juicy and bright, with citrus and stone fruit flavors.
    — Esther Mobley, San Francisco Chronicle, 14 June 2018
  • Altitudes range from 400-700m and contain varying quantities of volcanic tuff and calcareous clays.
    — Paul Caputo, Forbes.com, 31 Aug. 2025
  • Magnified 100x, the ossicles are calcareous and thought to offer some protection to juveniles.
    — Discover Magazine, 4 Oct. 2017
  • Bryozoans, considered a canary in the coal mine for magnesium-abundant marine animals with calcareous skeletons, thrive in California kelp forests.
    — Walter Ko, sacbee.com, 26 Apr. 2017
  • The process began 265 million years ago with the calcareous sponges, algae, and lime-rich mud that formed the underwater reef in the Permian Sea that once covered this region.
    — Stephanie Pearson, Outside Online, 2 Nov. 2022
  • Unlike the Caribbean, where sand consists of crushed quartz, beaches in this part of northern Norway are made up of fragments of dead shells and calcareous algae that have accumulated over thousands of years.
    — Dobrina Zhekova, Travel + Leisure, 4 June 2026
  • For a truly exclusive experience, the Cave Lounge’s underground calcareous limestone cavern allows access to the owners’ expansive library of wines.
    — Krista Simmons, Sunset Magazine, 29 Nov. 2022
  • The basaltic and calcareous soils impart minerality, enhancing complexity and elegance.
    — Joseph V Micallef, Forbes, 7 Jan. 2025
  • Beneath the vines lie calcareous clay and limestone—formations uncommon in California and long associated with Bordeaux’s historic Cabernet vineyards.
    — Robb Report Studio, Robb Report, 13 Mar. 2026
  • Mazzei explains that Il Caggio features a combination of factors ideal for Sangiovese, including altitudes between 1,050 and 1,150 feet, which ensure balanced ripening, and deep and well-drained clay, schist, and calcareous marl soils dotted with a type of sandstone that imparts intense minerality.
    — Mike Desimone, Robb Report, 14 Dec. 2025

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'calcareous.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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