Share
Embed
Mineral Evolution, Mineral Ecology, and “Big Data” Mineralogy
Robert Hazen tackle two major themes in this deck:
1. Mineral evolution: The co-evolution of the geosphere and biosphere
2. Mineral ecology: The search for Earth’s missing minerals
Deep Carbon Observatory
July 23, 2016
Transcript
76 slides
-
Mineral Evolution, Mineral Ecology, and “Big Data” Mineralogy DCO Summer
School—28 July 2016 Robert M. Hazen, Carnegie Institution -
Objectives 1. Mineral evolution: The co-evolution of the geosphere and
biosphere 2. Mineral ecology: The search for Earth’s missing minerals -
The Co-Evolution of the Geo- and Biospheres: An Integrated Program
for Data-Driven Abductive Discovery in the Earth Sciences Paul Falkowski Andrew Knoll Robert Hazen Robert Downs Dimitri Sverjensky Peter Fox -
Deep-Time Data Infrastructure Grethe Hystad Purdue, Calumet Dan Hummer, GL
Chao Liu, GL Josh Golden Alex Pires Univ. of Arizona Stephan Zednik Marshall X. Ma RPI Sophie Kolankowski Anirudh Prabhu Congrui Li Shaunna Morrison, U.Az. Jihua Hao JHU -
What Is Mineral Evolution? A change over time in: •
The diversity of mineral species • The relative abundances of minerals • The compositional ranges of minerals • The grain sizes and shapes of minerals -
What Is Mineral Evolution? Focus exclusively on near-surface (<3 km
depth) phases. • Accessible to study on Earth • Most likely to be observed on other planets and moons • Direct interaction with biology -
A Comment on “Evolution” • The word “evolution” has several
meanings • Change over time, as in Bowen’s “Evolution of the Igneous Rocks.” • Implication of complexification • Congruency • But NOT Darwinian evolution! -
Mineral Evolution New minerals form through a combination of chemical,
physical, and biological processes. -
Diamond—The First Mineral Diamond Formed from: (1) an abundant chemical
element, (2) with a very high T of condensation. -
“Ur”-Mineralogy Pre-solar grains contain about a dozen micro- and nano-mineral
phases: • Diamond/Lonsdaleite • Graphite (C) • Moissanite (SiC) • Osbornite (TiN) • Nierite (Si3 N4 ) • Rutile (TiO2 ) • Corundum (Al2 O3 ) • Spinel (MgAl2 O4 ) • Hibbonite (CaAl12 O19 ) • Forsterite (Mg2 SiO4 ) • Nano-particles of TiC, ZrC, MoC, FeC, Fe-Ni metal within graphite. • GEMS (silicate glass with embedded metal and sulfide). -
Mineral Evolution: How did we get from a dozen minerals
(with 10 essential elements) to >5000 minerals (with 72 essential elements) on Earth today? -
Stage 1: Primary Chondrite Minerals Minerals formed ~4.56 billion years
ago in the Solar nebula by melting and cooling. ~60 mineral species -
Stage 2: Alteration of planetesimals by heat, water, and impacts
~250 mineral species • Feldspars • Quartz • Micas • Clays • Zircon • Calcite (4.56-4.55 billion years) -
Stage 3: Formation of a “Dry” Planet ~300 mineral species?
This is the end point of the Moon and Mercury. -
Stage 3: Formation of a Wet Planet (4.5 to 4.0
billion years ago) ~420 mineral species (hydroxides, clays) -
Stage 4: Granite Formation (More than 3.5 billion years ago)
>1000 mineral species Partial melting of basalt and/or sediments. (pegmatites) -
Stage 5: Plate tectonics (More than 3 billion years ago)
New modes of volcanism, massive sulfides, high-pressure minerals Mayon Volcano, Philippines ~108 km3 of reworking -
1,500 mineral species High-pressure metamorphic suites (blueschists; granulites; UHP phases)
Stage 5: Plate tectonics (More than 3 billion years ago) -
Earth’s chemical and physical processes resulted in up to 1500
different mineral species. How did we get to more than 5000 mineral species on Earth today? The answer is life. -
The origin of life ~4 billion years ago required some
minimal degree of mineral evolution. Hence the co-evolution of the geo- and biospheres. Conversely, further mineral evolution depends on life. Sulfides Borates Clays -
Stage 6: Anoxic Archean biosphere (4.0-2.5 billion years ago) ~1,500
mineral species (BIFs, carbonates) F. Corsetti, USC D. Papineau -
Stage 7: Paleoproterozoic Oxidation (2.5-1.85 billion years ago) >4,600 mineral
species, including perhaps >3,000 new oxides/hydroxides/carbonates Rise of oxygenic photosynthesis. Negaunee BIF, ~1.9 Ga -
Hypothesis Approximately 2/3rds of all known mineral species cannot form
in an anoxic environment. Most known minerals are thus a consequence of biological activity. -
The Rise of Atmospheric Oxygen Kump (2008) Nature 451, 277-278.
The Great Oxidation Event Led to 1000s of New Minerals -
log fO2 ~ -72 What was the oxygen level in
the Archean Eon? -
The “Great Titration Event” Cellular Scale 1. Directed Biomineralization Tom
Price Mine, Western Australia -
What was the oxygen level in the Archean Eon? Azurite
& Malachite log fO2 > -43 -
>400 of 650 Cu Minerals Won’t Form Azurite & Malachite
Aurichalcite Libethenite Dioptase Turquoise Linarite Brochthite & Linarite -
Autunite Fourmarierite & Becquerelite Kasolite & Torbernite Boltwoodite >220 of
254 U Minerals Won’t Form Lepersonnite, Studtite ,& Curite -
Annabergite Hellyerite & Zaratite Falcondoite & Willemseite Gillardite on Gaspeite
Honessite >100 of 154 Ni Minerals Won’t Form -
Crocoite Lanarkite, Leadhillite & Pyromorphite Descloizite Jamesite Beaverite & Cerrusite
Ludlockite Leadhillite Pyromorphite >100s of Pb, Zn, Mo, Cr, As, S, Hg, and minerals of other redox elements won’t form -
Before the Great Oxidation Event all minerals were restricted to
-90 < log fO2 < -60. Only the most reduced mineral species formed. log fO2 (oxygen fugacity) 0 -20 -40 -60 -80 -
log fO2 (oxygen fugacity) 0 -20 -40 -60 -80 After
the Great Oxidation Event minerals the redox range of minerals tripled to -90 < log fO2 < 0, thus opening the door for many new minerals. Hence, mineral diversity also tripled. -
Co-evolution of the geosphere and biosphere >4600 mineral species Changes
in Earth’s atmospheric composition at ~2.4 to 2.2 billion years ago represent the single most significant factor in our planet’s mineralogical diversity. -
Stage 8: The “Intermediate Ocean” (1.85-0.85 billion years old) >4600
mineral species (few new species) Oxidized surface ocean; deep-ocean anoxia. Sulfate-reducing microbes. -
Stage 9: Snowball Earth and Neoproterozoic Oxidation (850 to 542
million years ago) >4600 mineral species (few new species) Glacial cycles triggered by albedo feedback. Skeleton Coast, Namibia -
Stage 10: Phanerozoic Biomineralization (Less than 542 million years old)
>5,000 mineral species (biominerals, clays) -
Stage 10: Phanerozoic Biomineralization (<0.542 billion years old) >5,000 mineral
species carbonate hazenite silica apatite -
ROOTS: The Rise of the Terrestrial Biosphere Rhynie Chert (~410
million years old) Clays Rivers Clouds Fungi Microbes Worms -
ROOTS: The Rise of the Terrestrial Biosphere First extensive production
of terrestrial clay minerals -
Co-evolution: Does Life Drive Plate Tectonics? Perhaps modern-style plate subduction
is lubricated by clay minerals -
The RRUFF Mineral Database Searchable Chemistry Filter Species List New
Evolution Database >120,000 mineral-locality-age data -
Hg Mineral Evolution The distribution of mercury (Hg) minerals through
time also correlates with the SC cycle over the past 3 billion years, but there’s a gap during the “boring billion”. Hazen et al. (2012) Amer. Mineral. 97, 1013-42. The age distribution of detrial zircon crystals correlates with the supercontinent cycle. After Hawkesworth et al. (2010) -
Age Distribution of All Transition Metal Minerals “Global Magmatic Shutdown”
~2.4-2.25 Ga (Condie et al. 2009) Plate tectonics “stopped”? Global glaciation events? SC stability/breakup? -
Manganese Mn minerals mirror the rise of oxygen Increase in
Mn4+/Mn2+ after ~500 Ma -
CONCLUSIONS Earth has transformed repeatedly, evolving over 4.5 billion years,
and it continues to change today. Life and minerals have co-evolved as a consequence of many positive and negative feedbacks. Mineral Evolution: Co-evolution of Life and Rocks -
Part II: Mineral Ecology We define “mineral ecology” as the
study of the diversity and distribution of minerals in the context of their chemical, physical, and biological environments. -
Mineral Ecology: Crystal Chemistry Mineral Ecology: Frequency Distributions We have
data on >5000 Earth mineral species (rruff.info/ima) from >150,000 localities and >650,000 unique combinations of mineral species and locality (mindat.org). -
Mineral Ecology: Crystal Chemistry Mineral Ecology: Frequency Distributions We have
data on >5000 Earth mineral species (rruff.info/ima) from >150,000 localities and >650,000 unique combinations of mineral species and locality (mindat.org). -
Mineral Ecology: Crystal Chemistry Mineral Ecology: Frequency Distributions We have
data on >5000 Earth mineral species (rruff.info/ima) from >150,000 localities and >650,000 unique combinations of mineral species and locality (mindat.org). Is there a quantitative relationship between mineral diversity and distribution? -
Mineral Ecology: Crystal Chemistry Mineral Ecology: Frequency Distributions The distribution
of the >5000 known mineral species is similar to that of words in a book or biomass in an ecosystem. -
Mineral Ecology: Crystal Chemistry Mineral Ecology: Frequency Distributions REDWOOD FOREST
ECOSYSTEMS Most of the biomass is in redwood trees. Almost all diversity is in small, rarer species. -
Mineral Ecology: Crystal Chemistry Mineral Ecology: Frequency Distributions UNSIGNED MANUSCRIPTS
Most words are common: “a”, “and”, “the”. Rare words define diversity (and authorship). -
Mineral Ecology: Crystal Chemistry Mineral Ecology: Frequency Distributions Calcite Cinnabar
Diamond Bobdownsite Hazenite 25,000 localities 3 localities Only 1 locality 700 localities 2500 localities -
Mineral Ecology: Crystal Chemistry Mineral Ecology: Frequency Distributions FREQUENCY DISTRIBUTION
OF >5000 CRUSTAL MINERAL SPECIES: These data conform to a “Large Number of Rare Events” (LNRE) distribution, which allows statistical modeling of diversity-distribution patterns. Hystad et al. (2015) -
Species Accumulation Curves in Ecology 0! 100! 200! 300! 400!
500! 600! 700! 800! 900! 1000! 0! 50000! 100000! 150000! 200000! 250000! 300000! 350000! Number of different OTUs! Number of Tags Sequenced! CSW1.1! CSWold! N08B! N08C! Count individuals Count DNA sequences -
Mineral Ecology: Species Accumulation The number of reported mineral-locality data
The number of approved mineral species Cumulative number of mineral species N (number of mineral counts) -
Mineral Ecology: Species Accumulation At the start, new species are
discovered rapidly. Cumulative number of mineral species N (number of mineral counts) -
Mineral Ecology: Species Accumulation Data as of Feb. 2015: ~5000
minerals 652,856 counts Cumulative number of mineral species N (number of mineral counts) -
Mineral Ecology: Species Accumulation Extrapolated into the future; an estimated
6437 mineral species exist on Earth today. Cumulative number of mineral species N (number of mineral counts) -
Mineral Ecology: Species Accumulation We predict that >1500 mineral species
have yet to be discovered and described using what are now standard techniques. But what are they? Cumulative number of mineral species N (number of mineral counts) -
Carbon Minerals: Accumulation Curves 403 carbon mineral species, known from
82,922 locality data, conform to an LNRE distribution. We extrapolate that 145 additional carbon mineral species exist on Earth but have yet to be discovered. Data as of today: 403 C minerals 82,922 counts -
An international quest to discover the >100 “missing” minerals that
incorporate carbon. GO TO: mineralchallenge.net -
With thanks to: The W. M. Keck Foundation The Deep
Carbon Observatory NASA Astrobiology Institute Alfred P. Sloan Foundation Carnegie Institution, Geophysical Lab