RESEARCH BASE

Search 3,717 documents across 34 fields — every claim tier-rated by evidence

3,717 documents 34 sections 47,686 citations 34,596+ keywords indexed 4 evidence tiers

49 results for "oxygen isotope" — page 3 of 3

R_1_02 — The Cambrian Explosion

Between ~541 and ~520 million years ago, nearly ALL major animal body plans (phyla) appeared in the fossil record in an evolutionary "instant" — roughly 20 million years. Before this, life had been single-celled for ~3 b

Cambrian explosion animal phyla body plans Burgess Shale Chengjiang Ediacaran

F_2_15 Verified Lost Connections

F_2_15 — Turquoise Trade Networks: Mesoamerica to American Southwest

Turquoise — the distinctive blue-green copper-aluminum phosphate mineral — was one of the most valued materials in the pre-Columbian Americas, and its trade networks connected the American Southwest to Mesoamerica across

turquoise trade Mesoamerica American Southwest Pueblo Chaco Canyon

F_2_06 Verified Lost Connections

F_2_06 — Tin Sources and the Bronze Age Mystery

The Bronze Age (c. 3300–1200 BCE) depended fundamentally on tin — the scarce metal alloyed with copper to produce bronze (typically 88–92% copper, 8–12% tin). While copper was widely available across the Mediterranean, N

tin cassiterite Bronze Age bronze copper-tin alloy Cornwall

F_2_13 Credible Lost Connections

F_2_13 — Copper Trade Networks: Great Lakes to Mediterranean

The Great Lakes copper deposits — particularly the vast deposits of native (naturally pure) copper on the Keweenaw Peninsula and Isle Royale of Michigan's Upper Peninsula — represent one of the world's most remarkable mi

copper native copper Great Lakes Lake Superior Isle Royale Keweenaw

F_3_04 Lost Connections

F_3_04 — Spread of Metallurgy: Copper, Bronze, Iron Across the Ancient World

Metallurgy developed independently in multiple regions, beginning with native copper use by ~9000 BCE and smelting by ~7000 BCE in Anatolia. The transition from copper to arsenical bronze and then tin bronze reshaped anc

metallurgy copper smelting bronze age iron smelting tin trade arsenical bronze

ZA_3_03 Physics & Quantum

ZA_3_03 — Nuclear Physics: Fission, Fusion, and the Heart of Matter

Nuclear physics studies the atomic nucleus — the dense core of protons and neutrons bound by the strong nuclear force, containing 99.95% of an atom's mass in just 10⁻¹⁵ meters. The field revealed that mass can be convert

nuclear physics fission fusion nuclear binding energy strong nuclear force radioactive decay

I_4_09 Credible UAP Disclosure

I_4_09 — Scientific Analysis of UAP Physical Evidence — Trace Cases

Physical trace cases represent one of the most scientifically significant — yet frustratingly inconclusive — categories of UAP evidence: instances where alleged UAP encounters left measurable, physical residues on the en

physical trace landing trace soil analysis radiation metamaterial isotopic anomaly

I_4_10 Credible UAP Disclosure

I_4_10 — UAP Materials Analysis: Metamaterials and Physical Evidence

Among the most physically grounded lines of UAP evidence is the analysis of material samples allegedly associated with UAP events — fragments, residues, or artifacts recovered from sighting locations and subsequently sub

metamaterials UAP materials analysis isotope magnesium

E_4_16 Verified Cataclysms & Chronology

E_4_16 — Cosmogenic Isotope Dating: Beryllium-10 and Exposure Ages

Cosmogenic nuclide dating (also called cosmogenic exposure dating or terrestrial cosmogenic nuclide, TCN, dating) is a geochronological method that determines how long a rock surface has been exposed at or near Earth's s

cosmogenic nuclide beryllium-10 10Be 26Al 36Cl 3He

← Prev 1 2 3

BROWSE BY SECTION — 3717 documents across 34 fields

A Foundations 112 docs B Beings & Entities 114 docs C Global Traditions 116 docs D Sites & Artifacts 116 docs E Cataclysms & Chronology 109 docs F Lost Connections 111 docs G Modern Frameworks 99 docs H Suppression & Thesis 95 docs I UAP Disclosure 87 docs J Ancient Technology 103 docs K Consciousness 100 docs L Genetics & Origins 92 docs M Forbidden Archaeology 103 docs N Secret Societies 87 docs O Earth Anomalies 108 docs P Philosophy & Meaning 104 docs Q Cosmology & Physics 100 docs R Biology & Evolution 94 docs S Future Technology 100 docs T Psychology & Social 112 docs U Art, Music & Culture 122 docs V Mathematics & Information 87 docs W World Civilizations 140 docs X Medicine & Healing 126 docs Y Altered States 113 docs Z Molecular Biology 112 docs ZA Physics & Quantum 117 docs ZB Ecology & Biology 118 docs ZC Social Science 111 docs ZD Information & Computation 95 docs ZE Ethics & Applied Philosophy 99 docs ZF Oceanography 105 docs ZG Linguistics & Communication 110 docs ZH Archaeoastronomy 114 docs