colour index
colour index The total volume percent of
mafic (coloured)
silicate minerals in an
igneous rock. The mafic minerals would include the
olivine group,
pyroxene group, and
amphibole group of minerals, as well as
biotite. Colour index is one of many methods used for classifying igneous rocks. If a rock has 60% modal mafic minerals it has a colour index of 60. Rocks with colour indices between 50 and 90 are termed ‘
mafic’ rocks (e.g.
basalts).
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Metal content of Klesormidium-dominated (chlorophyta) algal mats from acid mine drainage waters in southeastern Ohio
Magazine article from: Journal of the Torrey Botanical Society; 7/1/2001; ; 700+ words
; ...content of Klebsormidium-dominated (Chlorophyta) algal mats from acid mine drainage...content of Klebsormidium-dominated (Chlorophyta) algal mats from acid mine drainage...words: acid mine drainage, aluminum, Chlorophyta, iron, Klebsormidium, manganese...
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Phylogenetic placement of "zoochlorellae" (chlorophyta), algal symbiont of the temperate sea anemone Anthopleura elegantissima.
Magazine article from: The Biological Bulletin; 10/1/2004; ; 700+ words
; ...zoochlorellae, Chlorellalike green cells in the phylum Chlorophyta; Muscatine, 1971; O'Brien and Wyttenbach, 1980) are...verified the status of the green symbiont as a member of the Chlorophyta (Muscatine, 1971). Ultrastructural studies also indicated...
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New records and notes on Hawaiian marine Benthic Chlorophyta, including Pseudochlorodesmis abbreviata (Gilbert), n. comb. (Udoteaceae) and Cladophora luxurians (Gilbert), n. comb. (Cladophoraceae) (1).
Magazine article from: Pacific Science; 7/1/2003; ; 700+ words
; ...three species of Hawaiian green algae (Chlorophyta) are examined. Udotea? abbreviata...and nine species of marine benthic Chlorophyta are newly recorded for the Hawaiian...During preparatory research for the Chlorophyta volume we encountered three species...
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Plant-parasitic algae (Chlorophyta: Trentepohliales) in American Samoa (1).
Magazine article from: Pacific Science; 7/1/2004; ; 700+ words
; ...recorded filamentous green algae of the order Trentepohliales (Chlorophyta) and their plant hosts. Putative pathogenicity of the parasitic...Trentepohliales, a unique order of filamentous green algae (Chlorophyta) that are aerial rather than aquatic, brightly colored...
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Studies on uroporphyrinogen decarboxylase from Chlorella kessleri (Trebouxiophyceae, Chlorophyta).
Magazine article from: Canadian Journal of Microbiology; 2/1/2007; ; 700+ words
; ...the enzyme from a Chlorella kessleri (Trebouxiophyceae, Chlorophyta) strain (Copahue, Neuquen, Argentina), and describe...decarboxylase, porphyrins, chlorophyll, Chlorella kessleri, Chlorophyta. Resume : L'uroporphyrogene decarboxylase (UroD)(EC...
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MORPHOLOGY AND DIAGENESIS OF DIMORPHOSIPHON TALBOTORUM N. SP., AN ORDOVICIAN SKELETON-BUILDING ALGA (CHLOROPHYTA: DIMORPHOSIPHONACEAE)
Magazine article from: Journal of Paleontology; 1/1/2007; ; 700+ words
; ABSTRACT- Dimorphosiphon talbotorum n. sp. from the Upper Ordovician Bighorn Dolomite of Wyoming is an ancient representative of the erect skeleton-building green algae. Circumstantial evidence indicates that the original skeletal material was aragonite. If so, D. talbotorum and its Ordovician
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CAULERPA PROLIFERA (CHLOROPHYTA: CAULERPACEAE) FROM THE LAGUNA MADRE OF SOUTH TEXAS.
Magazine article from: The Texas Journal of Science; 5/1/2001; ; 700+ words
; On 21 November 1998, large numbers of specimens of the macrophytic green algal species Caulerpa prolifera (Forsskal) Lamouroux were observed along the west coast of the southern tip of South Padre Island. A strong northwest wind had served to deposit these specimens among the drift just above the
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Re-occurrence of the tropical green macroalga, Penicillus capitatus (Chlorophyta: Bryopsidales), in the Lower Laguna Madre of south Texas.(GENERAL NOTES)(Report)
Magazine article from: The Texas Journal of Science; 11/1/2007; ; 700+ words
; The siphonaceous green alga Penicillus capitatus Lamarck is a common macroalga of the Carribean and Gulf of Mexico (Littler & Littler 2000). This shaving brush-shaped macroalga was a common inhabitant of the Lower Laguna Madre, Texas (LLM) until about 40 years ago when the population was
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Functional morphology and evolution of early Paleozoic dasycladalean algae (Chlorophyta)
Magazine article from: Paleobiology; 1/1/2009; ; 700+ words
; Abstract.-Biophysical modeling and morphologic data from the fossil record were used to investigate the functional significance of changes in thallus morphology during the early evolutionary history of dasycladalean algae (dasyclads), a clade of benthic marine macroalgae. Modeling results indicate
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Mitochondrial Genome Sequence Evolution in Chlamydomonas
Magazine article from: Genetics; 2/1/2007; ; 700+ words
; ...ABSTRACT The mitochondrial genomes of the Chlorophyta exhibit significant diversity with respect...Mitochondrial genome sequence data from the Chlorophyta, which includes most of the green algal...et al. 2006). Members within the Chlorophyta differ from those within most eukaryotic...
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Chlorophyta
Book article from: A Dictionary of Plant Sciences
Chlorophyta (green algae ) A division of algae which are typically green in colour...The classification of the green algae is controversial. The division Chlorophyta is sometimes regarded as containing only 2 classes (Chlorophyceae and...
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Algae
Book article from: Plant Sciences
...Mostly freshwater Unicellular uniflagellates Chlorophyll b Chlorophyta Green algae Chlorophyll a Chlorophyll b Prasinophyceae Marine...divisions of algae in the table, only the group called the Chlorophyta is considered to be closely related to green plants. The...
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seaweeds
Book article from: A Dictionary of Biology
seaweeds Large multicellular algae living in the sea or in the intertidal zone. They are commonly species of the Chlorophyta , Phaeophyta , and Rhodophyta .
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Euglenida
Book article from: A Dictionary of Biology
...euglenids are photosynthetic and inhabit fresh water, and in some classification systems are regarded as green algae (phylum Chlorophyta). However, they lack a cell wall, being covered with a proteinaceous pellicle , and some forms are colourless and thus...
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green algae
Book article from: A Dictionary of Biology
green algae See Chlorophyta .
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